[HOTFIX] Patching maven build after #6 (SPARK-1121).
[HOTFIX] Patching maven build after #6 (SPARK-1121).

That patch removed the Maven avro declaration but didn't remove the
actual dependency in core. /cc @scrapcodes

Author: Patrick Wendell <pwendell@gmail.com>

Closes #37 from pwendell/master and squashes the following commits:

0ef3008 [Patrick Wendell] [HOTFIX] Patching maven build after #6 (SPARK-1121).

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