clean up gitignore
clean up gitignore

likelyzhao/mxnet,nicklhy/mxnet,DickJC123/mxnet,arikpoz/mxnet,saurabh3949/mxnet,mbaijal/incubator-mxnet,piiswrong/mxnet,sergeykolychev/mxnet,Ldpe2G/mxnet,crazy-cat/incubator-mxnet,fullfanta/mxnet,yuruofeifei/mxnet,ptrendx/mxnet,piiswrong/mxnet,ZihengJiang/mxnet,sergeykolychev/mxnet,stefanhenneking/mxnet,thirdwing/mxnet,madjam/mxnet,formath/mxnet,apache/incubator-mxnet,kevinthesun/mxnet,danithaca/mxnet,tlby/mxnet,vikingMei/mxnet,LinkHS/incubator-mxnet,madjam/mxnet,danithaca/mxnet,wangyum/mxnet,rahul003/mxnet,Northrend/mxnet,reminisce/mxnet,formath/mxnet,gautamkmr/incubator-mxnet,DickJC123/mxnet,eric-haibin-lin/mxnet,kkk669/mxnet,arank/mxnet,madjam/mxnet,nicklhy/mxnet,sxjscience/mxnet,antoan2/incubator-mxnet,arikpoz/mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,tlby/mxnet,ForkedReposBak/mxnet,indhub/mxnet,jamesliu/mxnet,ShownX/incubator-mxnet,navrasio/mxnet,ykim362/mxnet,Mega-DatA-Lab/mxnet,DR08/mxnet,ForkedReposBak/mxnet,tlby/mxnet,tornadomeet/mxnet,TuSimple/mxnet,tlby/mxnet,yajiedesign/mxnet,sxjscience/mxnet,rahul003/mxnet,pluskid/mxnet,szha/mxnet,gautamkmr/incubator-mxnet,mbaijal/incubator-mxnet,yajiedesign/mxnet,EvanzzzZ/mxnet,ykim362/mxnet,thirdwing/mxnet,fullfanta/mxnet,tlby/mxnet,LinkHS/incubator-mxnet,saurabh3949/mxnet,madjam/mxnet,gautamkmr/incubator-mxnet,lxn2/mxnet,kevinthesun/mxnet,ptrendx/mxnet,fullfanta/mxnet,danithaca/mxnet,coder-james/mxnet,Northrend/mxnet,navrasio/mxnet,jennyzhang0215/incubator-mxnet,LinkHS/incubator-mxnet,ptrendx/mxnet,likelyzhao/mxnet,apaleyes/mxnet,CodingCat/mxnet,tornadomeet/mxnet,yuruofeifei/mxnet,rishita/mxnet,pluskid/mxnet,mbaijal/incubator-mxnet,Guneet-Dhillon/mxnet,leezu/mxnet,saurabh3949/mxnet,jamesliu/mxnet,formath/mxnet,thirdwing/mxnet,apache/incubator-mxnet,coder-james/mxnet,yuruofeifei/mxnet,jennyzhang0215/incubator-mxnet,yuruofeifei/mxnet,jermainewang/mxnet,navrasio/mxnet,kevinthesun/mxnet,ptrendx/mxnet,solin319/incubator-mxnet,leezu/mxnet,tornadomeet/mxnet,kkk669/mxnet,Mega-DatA-Lab/mxnet,jiajiechen/mxnet,kkk669/mxnet,stefanhenneking/mxnet,likelyzhao/mxnet,ptrendx/mxnet,reminisce/mxnet,Prasad9/incubator-mxnet,lxn2/mxnet,wangyum/mxnet,larroy/mxnet,gautamkmr/incubator-mxnet,smolix/incubator-mxnet,ShownX/incubator-mxnet,hesseltuinhof/mxnet,ykim362/mxnet,sergeykolychev/mxnet,hpi-xnor/BMXNet,indhub/mxnet,hesseltuinhof/mxnet,EvanzzzZ/mxnet,Northrend/mxnet,kkk669/mxnet,antoan2/incubator-mxnet,hpi-xnor/BMXNet,kevinthesun/mxnet,larroy/mxnet,nicklhy/mxnet,TuSimple/mxnet,LinkHS/incubator-mxnet,stefanhenneking/mxnet,Northrend/mxnet,szha/mxnet,CodingCat/mxnet,pluskid/mxnet,saurabh3949/mxnet,ZihengJiang/mxnet,dmlc/mxnet,antoan2/incubator-mxnet,yajiedesign/mxnet,jamesliu/mxnet,tornadomeet/mxnet,DR08/mxnet,mbaijal/incubator-mxnet,kkk669/mxnet,Guneet-Dhillon/mxnet,dmlc/mxnet,ForkedReposBak/mxnet,jermainewang/mxnet,leezu/mxnet,jermainewang/mxnet,kevinthesun/mxnet,navrasio/mxnet,reminisce/mxnet,sxjscience/mxnet,szha/mxnet,Guneet-Dhillon/mxnet,weleen/mxnet,eric-haibin-lin/mxnet,pluskid/mxnet,piiswrong/mxnet,Northrend/mxnet,coder-james/mxnet,luoyetx/mxnet,EvanzzzZ/mxnet,Ldpe2G/mxnet,formath/mxnet,pluskid/mxnet,lxn2/mxnet,larroy/mxnet,apaleyes/mxnet,ykim362/mxnet,hpi-xnor/BMXNet,lxn2/mxnet,luoyetx/mxnet,jennyzhang0215/incubator-mxnet,indhub/mxnet,eric-haibin-lin/mxnet,Mega-DatA-Lab/mxnet,thirdwing/mxnet,Ldpe2G/mxnet,leezu/mxnet,DR08/mxnet,hotpxl/mxnet,vikingMei/mxnet,sergeykolychev/mxnet,zhreshold/mxnet,LinkHS/incubator-mxnet,LinkHS/incubator-mxnet,ptrendx/mxnet,Prasad9/incubator-mxnet,hotpxl/mxnet,arikpoz/mxnet,arank/mxnet,Prasad9/incubator-mxnet,yuruofeifei/mxnet,Guneet-Dhillon/mxnet,precedenceguo/mxnet,coder-james/mxnet,vikingMei/mxnet,tornadomeet/mxnet,luoyetx/mxnet,reminisce/mxnet,stefanhenneking/mxnet,leezu/mxnet,TuSimple/mxnet,reminisce/mxnet,danithaca/mxnet,Ldpe2G/mxnet,coder-james/mxnet,szha/mxnet,fullfanta/mxnet,lxn2/mxnet,ZihengJiang/mxnet,rahul003/mxnet,hotpxl/mxnet,indhub/mxnet,ZihengJiang/mxnet,szha/mxnet,xcgoner/dist-mxnet,xcgoner/dist-mxnet,crazy-cat/incubator-mxnet,reminisce/mxnet,apaleyes/mxnet,stefanhenneking/mxnet,crazy-cat/incubator-mxnet,eric-haibin-lin/mxnet,ZihengJiang/mxnet,dmlc/mxnet,larroy/mxnet,yajiedesign/mxnet,smolix/incubator-mxnet,ShownX/incubator-mxnet,hotpxl/mxnet,precedenceguo/mxnet,szha/mxnet,mbaijal/incubator-mxnet,stefanhenneking/mxnet,tornadomeet/mxnet,precedenceguo/mxnet,luoyetx/mxnet,dmlc/mxnet,xcgoner/dist-mxnet,jiajiechen/mxnet,indhub/mxnet,wangyum/mxnet,precedenceguo/mxnet,zhreshold/mxnet,apaleyes/mxnet,ZihengJiang/mxnet,wangyum/mxnet,antoan2/incubator-mxnet,pluskid/mxnet,jiajiechen/mxnet,TuSimple/mxnet,vikingMei/mxnet,ShownX/incubator-mxnet,EvanzzzZ/mxnet,nicklhy/mxnet,vikingMei/mxnet,jiajiechen/mxnet,TuSimple/mxnet,hotpxl/mxnet,vikingMei/mxnet,jiajiechen/mxnet,rahul003/mxnet,formath/mxnet,solin319/incubator-mxnet,rahul003/mxnet,arikpoz/mxnet,solin319/incubator-mxnet,ForkedReposBak/mxnet,sergeykolychev/mxnet,wangyum/mxnet,jermainewang/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,ZihengJiang/mxnet,hpi-xnor/BMXNet,arikpoz/mxnet,kevinthesun/mxnet,sxjscience/mxnet,rishita/mxnet,arank/mxnet,pluskid/mxnet,DR08/mxnet,CodingCat/mxnet,ForkedReposBak/mxnet,hotpxl/mxnet,kkk669/mxnet,jamesliu/mxnet,Mega-DatA-Lab/mxnet,piiswrong/mxnet,jamesliu/mxnet,hesseltuinhof/mxnet,Ldpe2G/mxnet,thirdwing/mxnet,Guneet-Dhillon/mxnet,ptrendx/mxnet,hpi-xnor/BMXNet,Prasad9/incubator-mxnet,yuruofeifei/mxnet,Northrend/mxnet,smolix/incubator-mxnet,TuSimple/mxnet,hotpxl/mxnet,hpi-xnor/BMXNet,yajiedesign/mxnet,Ldpe2G/mxnet,sergeykolychev/mxnet,dmlc/mxnet,gautamkmr/incubator-mxnet,danithaca/mxnet,EvanzzzZ/mxnet,sxjscience/mxnet,zhreshold/mxnet,solin319/incubator-mxnet,EvanzzzZ/mxnet,Mega-DatA-Lab/mxnet,rahul003/mxnet,jermainewang/mxnet,smolix/incubator-mxnet,jennyzhang0215/incubator-mxnet,weleen/mxnet,eric-haibin-lin/mxnet,rahul003/mxnet,reminisce/mxnet,hpi-xnor/BMXNet,szha/mxnet,piiswrong/mxnet,crazy-cat/incubator-mxnet,dmlc/mxnet,sergeykolychev/mxnet,danithaca/mxnet,stefanhenneking/mxnet,sergeykolychev/mxnet,navrasio/mxnet,gautamkmr/incubator-mxnet,eric-haibin-lin/mxnet,solin319/incubator-mxnet,navrasio/mxnet,Guneet-Dhillon/mxnet,wangyum/mxnet,mbaijal/incubator-mxnet,piiswrong/mxnet,xcgoner/dist-mxnet,Mega-DatA-Lab/mxnet,danithaca/mxnet,sxjscience/mxnet,gautamkmr/incubator-mxnet,luoyetx/mxnet,saurabh3949/mxnet,Northrend/mxnet,thirdwing/mxnet,Prasad9/incubator-mxnet,xcgoner/dist-mxnet,madjam/mxnet,arank/mxnet,piiswrong/mxnet,stefanhenneking/mxnet,crazy-cat/incubator-mxnet,xcgoner/dist-mxnet,TuSimple/mxnet,jennyzhang0215/incubator-mxnet,weleen/mxnet,DR08/mxnet,xcgoner/dist-mxnet,TuSimple/mxnet,saurabh3949/mxnet,rishita/mxnet,smolix/incubator-mxnet,Mega-DatA-Lab/mxnet,arikpoz/mxnet,solin319/incubator-mxnet,saurabh3949/mxnet,solin319/incubator-mxnet,LinkHS/incubator-mxnet,formath/mxnet,jennyzhang0215/incubator-mxnet,larroy/mxnet,ShownX/incubator-mxnet,navrasio/mxnet,hesseltuinhof/mxnet,madjam/mxnet,arank/mxnet,szha/mxnet,jermainewang/mxnet,rahul003/mxnet,kevinthesun/mxnet,formath/mxnet,fullfanta/mxnet,ptrendx/mxnet,Northrend/mxnet,smolix/incubator-mxnet,pluskid/mxnet,crazy-cat/incubator-mxnet,indhub/mxnet,kevinthesun/mxnet,nicklhy/mxnet,ShownX/incubator-mxnet,fullfanta/mxnet,zhreshold/mxnet,arikpoz/mxnet,Ldpe2G/mxnet,yajiedesign/mxnet,nicklhy/mxnet,ykim362/mxnet,DR08/mxnet,jennyzhang0215/incubator-mxnet,nicklhy/mxnet,jamesliu/mxnet,Prasad9/incubator-mxnet,larroy/mxnet,precedenceguo/mxnet,jermainewang/mxnet,indhub/mxnet,madjam/mxnet,larroy/mxnet,zhreshold/mxnet,fullfanta/mxnet,Mega-DatA-Lab/mxnet,antoan2/incubator-mxnet,sxjscience/mxnet,yuruofeifei/mxnet,vikingMei/mxnet,sxjscience/mxnet,CodingCat/mxnet,mbaijal/incubator-mxnet,sxjscience/mxnet,apache/incubator-mxnet,fullfanta/mxnet,thirdwing/mxnet,apaleyes/mxnet,ShownX/incubator-mxnet,szha/mxnet,ptrendx/mxnet,EvanzzzZ/mxnet,jiajiechen/mxnet,likelyzhao/mxnet,ZihengJiang/mxnet,xcgoner/dist-mxnet,indhub/mxnet,fullfanta/mxnet,antoan2/incubator-mxnet,EvanzzzZ/mxnet,Guneet-Dhillon/mxnet,weleen/mxnet,ForkedReposBak/mxnet,stefanhenneking/mxnet,rishita/mxnet,ptrendx/mxnet,reminisce/mxnet,coder-james/mxnet,jamesliu/mxnet,ForkedReposBak/mxnet,smolix/incubator-mxnet,hesseltuinhof/mxnet,lxn2/mxnet,kkk669/mxnet,gautamkmr/incubator-mxnet,TuSimple/mxnet,zhreshold/mxnet,DR08/mxnet,Guneet-Dhillon/mxnet,rishita/mxnet,LinkHS/incubator-mxnet,jamesliu/mxnet,DR08/mxnet,madjam/mxnet,reminisce/mxnet,mbaijal/incubator-mxnet,crazy-cat/incubator-mxnet,ykim362/mxnet,rishita/mxnet,tlby/mxnet,apache/incubator-mxnet,precedenceguo/mxnet,jermainewang/mxnet,EvanzzzZ/mxnet,ykim362/mxnet,arank/mxnet,likelyzhao/mxnet,antoan2/incubator-mxnet,thirdwing/mxnet,ForkedReposBak/mxnet,hesseltuinhof/mxnet,weleen/mxnet,hpi-xnor/BMXNet,CodingCat/mxnet,danithaca/mxnet,saurabh3949/mxnet,likelyzhao/mxnet,CodingCat/mxnet,xcgoner/dist-mxnet,zhreshold/mxnet,leezu/mxnet,tornadomeet/mxnet,ykim362/mxnet,coder-james/mxnet,arikpoz/mxnet,navrasio/mxnet,gautamkmr/incubator-mxnet,apaleyes/mxnet,jennyzhang0215/incubator-mxnet,hotpxl/mxnet,eric-haibin-lin/mxnet,ZihengJiang/mxnet,Prasad9/incubator-mxnet,apaleyes/mxnet,yajiedesign/mxnet,thirdwing/mxnet,Mega-DatA-Lab/mxnet,hesseltuinhof/mxnet,apaleyes/mxnet,luoyetx/mxnet,weleen/mxnet,lxn2/mxnet,arank/mxnet,luoyetx/mxnet,TuSimple/mxnet,apaleyes/mxnet,piiswrong/mxnet,likelyzhao/mxnet,LinkHS/incubator-mxnet,yajiedesign/mxnet,Ldpe2G/mxnet,dmlc/mxnet,DickJC123/mxnet,leezu/mxnet,kevinthesun/mxnet,antoan2/incubator-mxnet,smolix/incubator-mxnet,danithaca/mxnet,nicklhy/mxnet,Prasad9/incubator-mxnet,hpi-xnor/BMXNet,likelyzhao/mxnet,crazy-cat/incubator-mxnet,DickJC123/mxnet,hesseltuinhof/mxnet,tornadomeet/mxnet,ShownX/incubator-mxnet,indhub/mxnet,formath/mxnet,coder-james/mxnet,wangyum/mxnet,vikingMei/mxnet,precedenceguo/mxnet,Prasad9/incubator-mxnet,wangyum/mxnet,jennyzhang0215/incubator-mxnet,reminisce/mxnet,madjam/mxnet,piiswrong/mxnet,crazy-cat/incubator-mxnet,hesseltuinhof/mxnet,formath/mxnet,hotpxl/mxnet,tlby/mxnet,luoyetx/mxnet,ShownX/incubator-mxnet,likelyzhao/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,yuruofeifei/mxnet,precedenceguo/mxnet,precedenceguo/mxnet,tlby/mxnet,rishita/mxnet,lxn2/mxnet,ykim362/mxnet,arikpoz/mxnet,arank/mxnet,luoyetx/mxnet,eric-haibin-lin/mxnet,Guneet-Dhillon/mxnet,pluskid/mxnet,arank/mxnet,solin319/incubator-mxnet,leezu/mxnet,jiajiechen/mxnet,nicklhy/mxnet,solin319/incubator-mxnet,weleen/mxnet,jiajiechen/mxnet,jermainewang/mxnet,dmlc/mxnet,larroy/mxnet,weleen/mxnet,saurabh3949/mxnet,kkk669/mxnet,tornadomeet/mxnet,CodingCat/mxnet,jiajiechen/mxnet,dmlc/mxnet,smolix/incubator-mxnet,leezu/mxnet,antoan2/incubator-mxnet,weleen/mxnet,rishita/mxnet,sergeykolychev/mxnet,wangyum/mxnet,tlby/mxnet,DR08/mxnet,jamesliu/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,Ldpe2G/mxnet,tlby/mxnet,rishita/mxnet,navrasio/mxnet,lxn2/mxnet,CodingCat/mxnet,vikingMei/mxnet,rahul003/mxnet,zhreshold/mxnet,kkk669/mxnet,coder-james/mxnet,Northrend/mxnet