Allow sbt to use more than 1G of heap.
Allow sbt to use more than 1G of heap.

There was a mistake in sbt build file ( introduced by 012bd5fbc97dc40bb61e0e2b9cc97ed0083f37f6 ) in which we set the default to 2048 and the immediately reset it to 1024.

Without this, building Spark can run out of permgen space on my machine.

Author: Reynold Xin <rxin@apache.org>

Closes #103 from rxin/sbt and squashes the following commits:

8829c34 [Reynold Xin] Allow sbt to use more than 1G of heap.

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