SPARK-5665 [DOCS] Update netlib-java documentation
SPARK-5665 [DOCS] Update netlib-java documentation

I am the author of netlib-java and I found this documentation to be out of date. Some main points:

1. Breeze has not depended on jBLAS for some time
2. netlib-java provides a pure JVM implementation as the fallback (the original docs did not appear to be aware of this, claiming that gfortran was necessary)
3. The licensing issue is not just about LGPL: optimised natives have proprietary licenses. Building with the LGPL flag turned on really doesn't help you get past this.
4. I really think it's best to direct people to my detailed setup guide instead of trying to compress it into one sentence. It is different for each architecture, each OS, and for each backend.

I hope this helps to clear things up :smile:

Author: Sam Halliday <sam.halliday@Gmail.com>
Author: Sam Halliday <sam.halliday@gmail.com>

Closes #4448 from fommil/patch-1 and squashes the following commits:

18cda11 [Sam Halliday] remove link to skillsmatters at request of @mengxr
a35e4a9 [Sam Halliday] reword netlib-java/breeze docs

rednaxelafx/apache-spark,joseph-torres/spark,ibm-research-ireland/sparkoscope,setjet/spark,spark-test/spark,zero323/spark,vinodkc/spark,aosagie/spark,saltstar/spark,caneGuy/spark,gengliangwang/spark,loneknightpy/spark,map222/spark,poffuomo/spark,spark-test/spark,kissmetrics/spark,aokolnychyi/spark,akopich/spark,JoshRosen/spark,apache-spark-on-k8s/spark,darionyaphet/spark,adrian-ionescu/apache-spark,eyalfa/spark,adrian-ionescu/apache-spark,byakuinss/spark,darionyaphet/spark,zhouyejoe/spark,alunarbeach/spark,panfengfeng/spark,tejasapatil/spark,zuotingbing/spark,UndeadBaneGitHub/spark,caneGuy/spark,jlopezmalla/spark,Panos-Bletsos/spark-cost-model-optimizer,ddna1021/spark,HyukjinKwon/spark,kissmetrics/spark,zzcclp/spark,sachintyagi22/spark,WindCanDie/spark,ibm-research-ireland/sparkoscope,ptkool/spark,rekhajoshm/spark,LantaoJin/spark,jkbradley/spark,panfengfeng/spark,byakuinss/spark,janewangfb/spark,skonto/spark,hhbyyh/spark,ptkool/spark,zhouyejoe/spark,nchammas/spark,aray/spark,jlopezmalla/spark,ddna1021/spark,tengpeng/spark,cin/spark,bOOm-X/spark,andrewor14/iolap,techaddict/spark,MLnick/spark,wangyum/spark,dbtsai/spark,aray/spark,wangmiao1981/spark,adrian-ionescu/apache-spark,nilsgrabbert/spark,vinodkc/spark,holdenk/spark,lxsmnv/spark,bOOm-X/spark,1haodian/spark,shuangshuangwang/spark,hvanhovell/spark,aray/spark,mike0sv/spark,taroplus/spark,byakuinss/spark,someorz/spark,narahari92/spark,mzl9039/spark,xuanyuanking/spark,kissmetrics/spark,loneknightpy/spark,rekhajoshm/spark,wangmiao1981/spark,HyukjinKwon/spark,srowen/spark,mdespriee/spark,stanzhai/spark,janewangfb/spark,dhruve/spark,brad-kaiser/spark,saturday-shi/spark,metamx/spark,jianran/spark,ConeyLiu/spark,gengliangwang/spark,apache/spark,maropu/spark,actuaryzhang/spark,darionyaphet/spark,poffuomo/spark,sureshthalamati/spark,ptkool/spark,guoxiaolongzte/spark,MLnick/spark,ddna1021/spark,caneGuy/spark,mahak/spark,MLnick/spark,brad-kaiser/spark,gioenn/xSpark,ron8hu/spark,szhem/spark,ajaysaini725/spark,Panos-Bletsos/spark-cost-model-optimizer,andrewor14/iolap,aokolnychyi/spark,setjet/spark,poffuomo/spark,gioenn/xSpark,kevinyu98/spark,hvanhovell/spark,apache/spark,WeichenXu123/spark,michalsenkyr/spark,adrian-ionescu/apache-spark,map222/spark,kiszk/spark,zuotingbing/spark,sureshthalamati/spark,sureshthalamati/spark,panfengfeng/spark,ioana-delaney/spark,alunarbeach/spark,darionyaphet/spark,liutang123/spark,wangmiao1981/spark,saltstar/spark,zzcclp/spark,saltstar/spark,cloud-fan/spark,sahilTakiar/spark,kissmetrics/spark,apache-spark-on-k8s/spark,minixalpha/spark,saturday-shi/spark,brad-kaiser/spark,stanzhai/spark,big-pegasus/spark,loneknightpy/spark,witgo/spark,debugger87/spark,loneknightpy/spark,actuaryzhang/spark,mahak/spark,ahnqirage/spark,WindCanDie/spark,SnappyDataInc/spark,cin/spark,kiszk/spark,saltstar/spark,liutang123/spark,liyichao/spark,skonto/spark,zzcclp/spark,michalsenkyr/spark,UndeadBaneGitHub/spark,WeichenXu123/spark,apache/spark,cin/spark,wangyum/spark,lxsmnv/spark,brad-kaiser/spark,bdrillard/spark,LantaoJin/spark,andrewor14/iolap,HyukjinKwon/spark,vinodkc/spark,bdrillard/spark,srowen/spark,kissmetrics/spark,mike0sv/spark,highfei2011/spark,aokolnychyi/spark,WeichenXu123/spark,haowu80s/spark,1haodian/spark,ron8hu/spark,bdrillard/spark,holdenk/spark,michalsenkyr/spark,andrewor14/iolap,rednaxelafx/apache-spark,publicRoman/spark,markhamstra/spark,janewangfb/spark,ptkool/spark,ioana-delaney/spark,1haodian/spark,goldmedal/spark,ConeyLiu/spark,shaneknapp/spark,panfengfeng/spark,nchammas/spark,wzhfy/spark,actuaryzhang/spark,guoxiaolongzte/spark,BryanCutler/spark,saltstar/spark,esi-mineset/spark,publicRoman/spark,eyalfa/spark,kiszk/spark,rikima/spark,sureshthalamati/spark,lvdongr/spark,facaiy/spark,skonto/spark,andrewor14/spark,apache-spark-on-k8s/spark,witgo/spark,dongjoon-hyun/spark,jrshust/spark,ConeyLiu/spark,andrewor14/spark,bravo-zhang/spark,map222/spark,saturday-shi/spark,pronix/spark,jlopezmalla/spark,ericvandenbergfb/spark,shubhamchopra/spark,srowen/spark,ueshin/apache-spark,icexelloss/spark,ConeyLiu/spark,jiangxb1987/spark,ajaysaini725/spark,bravo-zhang/spark,alunarbeach/spark,wzhfy/spark,wangyum/spark,liyichao/spark,tengpeng/spark,JerryLead/spark,LantaoJin/spark,icexelloss/spark,Aegeaner/spark,rikima/spark,szhem/spark,mike0sv/spark,gengliangwang/spark,JoshRosen/spark,chuckchen/spark,someorz/spark,kevinyu98/spark,highfei2011/spark,techaddict/spark,ddna1021/spark,ahnqirage/spark,WeichenXu123/spark,sureshthalamati/spark,sahilTakiar/spark,actuaryzhang/spark,wangyum/spark,WindCanDie/spark,aosagie/spark,nilsgrabbert/spark,SHASHANKB/spark,janewangfb/spark,andrewor14/spark,lxsmnv/spark,map222/spark,jrshust/spark,dbtsai/spark,rednaxelafx/apache-spark,stanzhai/spark,jianran/spark,WindCanDie/spark,metamx/spark,highfei2011/spark,metamx/spark,kimoonkim/spark,lvdongr/spark,tejasapatil/spark,lvdongr/spark,rezasafi/spark,lxsmnv/spark,hhbyyh/spark,sachintyagi22/spark,debugger87/spark,michalsenkyr/spark,ueshin/apache-spark,cloud-fan/spark,kissmetrics/spark,jlopezmalla/spark,lvdongr/spark,ajaysaini725/spark,rezasafi/spark,xuanyuanking/spark,sureshthalamati/spark,holdenk/spark,guoxiaolongzte/spark,mdespriee/spark,rikima/spark,BryanCutler/spark,ericvandenbergfb/spark,nchammas/spark,joseph-torres/spark,huang1900/spark,techaddict/spark,jiangxb1987/spark,xflin/spark,spark-test/spark,xflin/spark,UndeadBaneGitHub/spark,publicRoman/spark,mike0sv/spark,spark-test/spark,liutang123/spark,milliman/spark,mdespriee/spark,skonto/spark,jrshust/spark,ajaysaini725/spark,bOOm-X/spark,sachintyagi22/spark,MLnick/spark,lvdongr/spark,huang1900/spark,ibm-research-ireland/sparkoscope,ibm-research-ireland/sparkoscope,aosagie/spark,sahilTakiar/spark,Aegeaner/spark,poffuomo/spark,wangyum/spark,cloud-fan/spark,taroplus/spark,rednaxelafx/apache-spark,big-pegasus/spark,wzhfy/spark,someorz/spark,xuanyuanking/spark,JerryLead/spark,liutang123/spark,holdenk/spark,taroplus/spark,zuotingbing/spark,bravo-zhang/spark,loneknightpy/spark,dhruve/spark,aosagie/spark,rezasafi/spark,JerryLead/spark,cloud-fan/spark,WeichenXu123/spark,metamx/spark,minixalpha/spark,ioana-delaney/spark,shuangshuangwang/spark,haowu80s/spark,pgandhi999/spark,narahari92/spark,nlalevee/spark,UndeadBaneGitHub/spark,yanboliang/spark,lxsmnv/spark,rezasafi/spark,goldmedal/spark,big-pegasus/spark,gengliangwang/spark,zuotingbing/spark,techaddict/spark,HyukjinKwon/spark,wangmiao1981/spark,esi-mineset/spark,zzcclp/spark,kiszk/spark,janewangfb/spark,chuckchen/spark,WeichenXu123/spark,patrick-nicholson/spark,hhbyyh/spark,tengpeng/spark,zuotingbing/spark,aray/spark,witgo/spark,apache-spark-on-k8s/spark,huang1900/spark,sahilTakiar/spark,joseph-torres/spark,huang1900/spark,someorz/spark,kimoonkim/spark,apache-spark-on-k8s/spark,skonto/spark,ron8hu/spark,apache/spark,nilsgrabbert/spark,darionyaphet/spark,shubhamchopra/spark,esi-mineset/spark,apache/spark,mahak/spark,bravo-zhang/spark,ajaysaini725/spark,liyichao/spark,icexelloss/spark,darionyaphet/spark,ConeyLiu/spark,rezasafi/spark,xflin/spark,1haodian/spark,dbtsai/spark,Panos-Bletsos/spark-cost-model-optimizer,zhouyejoe/spark,hvanhovell/spark,pronix/spark,ptkool/spark,michalsenkyr/spark,pronix/spark,jiangxb1987/spark,bOOm-X/spark,mzl9039/spark,lvdongr/spark,jiangxb1987/spark,jianran/spark,mzl9039/spark,Aegeaner/spark,shaneknapp/spark,liyichao/spark,Aegeaner/spark,witgo/spark,zero323/spark,ueshin/apache-spark,guoxiaolongzte/spark,jiangxb1987/spark,adrian-ionescu/apache-spark,ueshin/apache-spark,stanzhai/spark,andrewor14/spark,UndeadBaneGitHub/spark,patrick-nicholson/spark,andrewor14/spark,haowu80s/spark,shubhamchopra/spark,metamx/spark,liyichao/spark,zhouyejoe/spark,zzcclp/spark,hhbyyh/spark,jkbradley/spark,patrick-nicholson/spark,mahak/spark,chuckchen/spark,sureshthalamati/spark,techaddict/spark,gioenn/xSpark,setjet/spark,kevinyu98/spark,wangmiao1981/spark,bdrillard/spark,ericvandenbergfb/spark,ajaysaini725/spark,facaiy/spark,goldmedal/spark,holdenk/spark,map222/spark,dbtsai/spark,hvanhovell/spark,nlalevee/spark,haowu80s/spark,ron8hu/spark,mzl9039/spark,ahnqirage/spark,hvanhovell/spark,eyalfa/spark,rikima/spark,icexelloss/spark,rezasafi/spark,SHASHANKB/spark,kimoonkim/spark,shuangshuangwang/spark,ajaysaini725/spark,kiszk/spark,haowu80s/spark,narahari92/spark,shubhamchopra/spark,rikima/spark,facaiy/spark,taroplus/spark,minixalpha/spark,mike0sv/spark,markhamstra/spark,pgandhi999/spark,debugger87/spark,chuckchen/spark,JerryLead/spark,1haodian/spark,gengliangwang/spark,mahak/spark,pronix/spark,goldmedal/spark,adrian-ionescu/apache-spark,zero323/spark,andrewor14/iolap,ron8hu/spark,caneGuy/spark,zuotingbing/spark,facaiy/spark,vinodkc/spark,jianran/spark,MLnick/spark,jrshust/spark,taroplus/spark,cin/spark,apache-spark-on-k8s/spark,milliman/spark,kimoonkim/spark,narahari92/spark,shuangshuangwang/spark,saturday-shi/spark,rezasafi/spark,Panos-Bletsos/spark-cost-model-optimizer,yanboliang/spark,gioenn/xSpark,shaneknapp/spark,stanzhai/spark,zhouyejoe/spark,nlalevee/spark,kimoonkim/spark,saltstar/spark,brad-kaiser/spark,skonto/spark,rednaxelafx/apache-spark,spark-test/spark,ibm-research-ireland/sparkoscope,setjet/spark,shaneknapp/spark,ddna1021/spark,big-pegasus/spark,someorz/spark,aokolnychyi/spark,kiszk/spark,metamx/spark,joseph-torres/spark,patrick-nicholson/spark,shuangshuangwang/spark,tejasapatil/spark,brad-kaiser/spark,srowen/spark,shubhamchopra/spark,highfei2011/spark,mdespriee/spark,szhem/spark,jkbradley/spark,ioana-delaney/spark,cin/spark,jiangxb1987/spark,big-pegasus/spark,jlopezmalla/spark,mzl9039/spark,zero323/spark,guoxiaolongzte/spark,jianran/spark,zhouyejoe/spark,aosagie/spark,andrewor14/iolap,setjet/spark,caneGuy/spark,nilsgrabbert/spark,shuangshuangwang/spark,kevinyu98/spark,cin/spark,holdenk/spark,eyalfa/spark,alunarbeach/spark,debugger87/spark,ahnqirage/spark,bdrillard/spark,mdespriee/spark,darionyaphet/spark,cloud-fan/spark,yanboliang/spark,srowen/spark,jkbradley/spark,haowu80s/spark,facaiy/spark,loneknightpy/spark,sachintyagi22/spark,akopich/spark,dongjoon-hyun/spark,rikima/spark,ioana-delaney/spark,tejasapatil/spark,rekhajoshm/spark,milliman/spark,rikima/spark,aokolnychyi/spark,LantaoJin/spark,zero323/spark,yanboliang/spark,xflin/spark,markhamstra/spark,ahnqirage/spark,jkbradley/spark,ericvandenbergfb/spark,SHASHANKB/spark,setjet/spark,aray/spark,caneGuy/spark,adrian-ionescu/apache-spark,rekhajoshm/spark,kiszk/spark,highfei2011/spark,icexelloss/spark,mdespriee/spark,SHASHANKB/spark,janewangfb/spark,kevinyu98/spark,sahilTakiar/spark,ptkool/spark,Panos-Bletsos/spark-cost-model-optimizer,dongjoon-hyun/spark,saltstar/spark,sahilTakiar/spark,rekhajoshm/spark,rednaxelafx/apache-spark,goldmedal/spark,JerryLead/spark,gioenn/xSpark,dbtsai/spark,BryanCutler/spark,kimoonkim/spark,icexelloss/spark,SnappyDataInc/spark,highfei2011/spark,wzhfy/spark,dhruve/spark,andrewor14/spark,bdrillard/spark,apache/spark,SnappyDataInc/spark,pgandhi999/spark,pgandhi999/spark,map222/spark,narahari92/spark,ueshin/apache-spark,patrick-nicholson/spark,Aegeaner/spark,LantaoJin/spark,zzcclp/spark,stanzhai/spark,szhem/spark,janewangfb/spark,bravo-zhang/spark,holdenk/spark,gengliangwang/spark,byakuinss/spark,yanboliang/spark,lxsmnv/spark,akopich/spark,vinodkc/spark,bravo-zhang/spark,nlalevee/spark,bravo-zhang/spark,SHASHANKB/spark,SnappyDataInc/spark,UndeadBaneGitHub/spark,zero323/spark,jrshust/spark,nlalevee/spark,sahilTakiar/spark,nchammas/spark,pgandhi999/spark,shuangshuangwang/spark,SHASHANKB/spark,panfengfeng/spark,jkbradley/spark,xuanyuanking/spark,wangmiao1981/spark,publicRoman/spark,wzhfy/spark,chuckchen/spark,dongjoon-hyun/spark,techaddict/spark,map222/spark,witgo/spark,bdrillard/spark,rekhajoshm/spark,nchammas/spark,ConeyLiu/spark,publicRoman/spark,goldmedal/spark,milliman/spark,bOOm-X/spark,JoshRosen/spark,guoxiaolongzte/spark,dhruve/spark,MLnick/spark,alunarbeach/spark,saturday-shi/spark,dbtsai/spark,maropu/spark,1haodian/spark,akopich/spark,milliman/spark,tengpeng/spark,hhbyyh/spark,Aegeaner/spark,nchammas/spark,tejasapatil/spark,rednaxelafx/apache-spark,debugger87/spark,metamx/spark,cloud-fan/spark,kissmetrics/spark,SnappyDataInc/spark,akopich/spark,JoshRosen/spark,dongjoon-hyun/spark,kimoonkim/spark,big-pegasus/spark,publicRoman/spark,skonto/spark,dongjoon-hyun/spark,ueshin/apache-spark,tejasapatil/spark,dhruve/spark,rekhajoshm/spark,markhamstra/spark,milliman/spark,Panos-Bletsos/spark-cost-model-optimizer,panfengfeng/spark,JoshRosen/spark,jlopezmalla/spark,pgandhi999/spark,BryanCutler/spark,markhamstra/spark,HyukjinKwon/spark,narahari92/spark,taroplus/spark,WindCanDie/spark,patrick-nicholson/spark,guoxiaolongzte/spark,jlopezmalla/spark,tengpeng/spark,shaneknapp/spark,jkbradley/spark,wzhfy/spark,ioana-delaney/spark,JoshRosen/spark,eyalfa/spark,ron8hu/spark,1haodian/spark,wzhfy/spark,xflin/spark,aokolnychyi/spark,highfei2011/spark,taroplus/spark,debugger87/spark,vinodkc/spark,mahak/spark,HyukjinKwon/spark,wangyum/spark,hvanhovell/spark,sachintyagi22/spark,WeichenXu123/spark,kevinyu98/spark,yanboliang/spark,Panos-Bletsos/spark-cost-model-optimizer,ahnqirage/spark,liutang123/spark,maropu/spark,srowen/spark,wangmiao1981/spark,gengliangwang/spark,jianran/spark,matthewfranglen/spark,ddna1021/spark,zhouyejoe/spark,dongjoon-hyun/spark,sachintyagi22/spark,michalsenkyr/spark,chuckchen/spark,techaddict/spark,pronix/spark,aokolnychyi/spark,akopich/spark,esi-mineset/spark,ericvandenbergfb/spark,caneGuy/spark,pronix/spark,maropu/spark,maropu/spark,ron8hu/spark,JerryLead/spark,mdespriee/spark,minixalpha/spark,HyukjinKwon/spark,minixalpha/spark,byakuinss/spark,WindCanDie/spark,lxsmnv/spark,maropu/spark,joseph-torres/spark,someorz/spark,saturday-shi/spark,liutang123/spark,byakuinss/spark,apache/spark,actuaryzhang/spark,goldmedal/spark,sachintyagi22/spark,esi-mineset/spark,cloud-fan/spark,hvanhovell/spark,vinodkc/spark,dhruve/spark,SHASHANKB/spark,liutang123/spark,liyichao/spark,stanzhai/spark,ahnqirage/spark,alunarbeach/spark,milliman/spark,tengpeng/spark,LantaoJin/spark,byakuinss/spark,mike0sv/spark,szhem/spark,publicRoman/spark,mahak/spark,hhbyyh/spark,jrshust/spark,huang1900/spark,andrewor14/iolap,facaiy/spark,jianran/spark,narahari92/spark,kevinyu98/spark,poffuomo/spark,joseph-torres/spark,eyalfa/spark,spark-test/spark,yanboliang/spark,joseph-torres/spark,icexelloss/spark,xuanyuanking/spark,aray/spark,mzl9039/spark,bOOm-X/spark,witgo/spark,debugger87/spark,esi-mineset/spark,shaneknapp/spark,actuaryzhang/spark,zero323/spark,UndeadBaneGitHub/spark,minixalpha/spark,zzcclp/spark,markhamstra/spark,ueshin/apache-spark,setjet/spark,cin/spark,huang1900/spark,actuaryzhang/spark,markhamstra/spark,tengpeng/spark,shubhamchopra/spark,gioenn/xSpark,mike0sv/spark,WindCanDie/spark,mzl9039/spark,liyichao/spark,shubhamchopra/spark,eyalfa/spark,dbtsai/spark,facaiy/spark,esi-mineset/spark,gioenn/xSpark,michalsenkyr/spark,JoshRosen/spark,aray/spark,BryanCutler/spark,nlalevee/spark,ibm-research-ireland/sparkoscope,ibm-research-ireland/sparkoscope,andrewor14/spark,aosagie/spark,srowen/spark,tejasapatil/spark,saturday-shi/spark,Aegeaner/spark,MLnick/spark,nchammas/spark,spark-test/spark,akopich/spark,ptkool/spark,patrick-nicholson/spark,huang1900/spark,alunarbeach/spark,poffuomo/spark,witgo/spark,maropu/spark,brad-kaiser/spark,aosagie/spark,xflin/spark,BryanCutler/spark,xflin/spark,hhbyyh/spark,xuanyuanking/spark,chuckchen/spark,nlalevee/spark,xuanyuanking/spark,someorz/spark,SnappyDataInc/spark,bOOm-X/spark,ioana-delaney/spark,ericvandenbergfb/spark,ddna1021/spark,nilsgrabbert/spark,pgandhi999/spark,zuotingbing/spark,panfengfeng/spark,apache-spark-on-k8s/spark,LantaoJin/spark,shaneknapp/spark,nilsgrabbert/spark,JerryLead/spark,szhem/spark,jrshust/spark,ConeyLiu/spark,lvdongr/spark,minixalpha/spark,loneknightpy/spark,BryanCutler/spark,ericvandenbergfb/spark,SnappyDataInc/spark,dhruve/spark,nilsgrabbert/spark,wangyum/spark,jiangxb1987/spark,szhem/spark,poffuomo/spark,big-pegasus/spark