Add Spark v0.9.1 to ec2 launch script and use it as the default
Add Spark v0.9.1 to ec2 launch script and use it as the default

Mainly ported from branch-0.9.

Author: Harvey Feng <hyfeng224@gmail.com>

Closes #385 from harveyfeng/0.9.1-ec2 and squashes the following commits:

769ac2f [Harvey Feng] Add Spark v0.9.1 to ec2 launch script and use it as the default

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