Fixed #526. Check for python2 executable by default, fallback to python
Fixed #526. Check for python2 executable by default, fallback to python

nodejs/node-gyp,nodegit/node-gyp,JacksonTian/node-gyp,nwjs/nw-gyp,vany-egorov/node-gyp,refack/node-gyp,abougouffa/node-gyp,bnoordhuis/node-gyp,camsong/node-gyp,justinmchase/node-gyp,saper/node-gyp,TooTallNate/node-gyp,mcanthony/node-gyp,Fishrock123/node-gyp,refack/node-gyp,purplecode/node-gyp,purplecode/node-gyp,tempbottle/node-gyp,TooTallNate/node-gyp,iWuzHere/node-gyp,tempbottle/node-gyp,aredridel/node-gyp,iWuzHere/node-gyp,CodeJockey/node-ninja,beatle/node-gyp,beatle/node-gyp,nwjs/nw-gyp,watonyweng/node-gyp,aredridel/node-gyp,watonyweng/node-gyp,justinmchase/node-gyp,samccone/node-gyp,TooTallNate/node-gyp,othiym23/node-gyp,othiym23/node-gyp,pmq20/node-gyp,iarna/node-gyp,tempbottle/node-gyp,SonicHedgehog/node-gyp,watonyweng/node-gyp,JacksonTian/node-gyp,isaacs/node-gyp,camsong/node-gyp,beatle/node-gyp,JacksonTian/node-gyp,iWuzHere/node-gyp,bnoordhuis/node-gyp,beatle/node-gyp,camsong/node-gyp,CodeJockey/node-ninja,saper/node-gyp,purplecode/node-gyp,jqk6/node-gyp,refack/node-gyp,isaacs/node-gyp,mcanthony/node-gyp,isaacs/node-gyp,jqk6/node-gyp,CodeJockey/node-ninja,pmq20/node-gyp,justinmchase/node-gyp,nwjs/nw-gyp,saper/node-gyp,abougouffa/node-gyp,isaacs/node-gyp,Fishrock123/node-gyp,TooTallNate/node-gyp,purplecode/node-gyp,Fishrock123/node-gyp,pmq20/node-gyp,CodeJockey/node-ninja,nishant8BITS/node-gyp,vany-egorov/node-gyp,nodejs/node-gyp,aredridel/node-gyp,pmq20/node-gyp,iarna/node-gyp,nishant8BITS/node-gyp,jqk6/node-gyp,aredridel/node-gyp,samccone/node-gyp,mcanthony/node-gyp,samccone/node-gyp,saper/node-gyp,isaacs/node-gyp,justinmchase/node-gyp,nwjs/nw-gyp,watonyweng/node-gyp,abougouffa/node-gyp,bnoordhuis/node-gyp,watonyweng/node-gyp,iWuzHere/node-gyp,purplecode/node-gyp,SonicHedgehog/node-gyp,refack/node-gyp,tempbottle/node-gyp,nodejs/node-gyp,nodejs/node-gyp,refack/node-gyp,bnoordhuis/node-gyp,nishant8BITS/node-gyp,nishant8BITS/node-gyp,JacksonTian/node-gyp,samccone/node-gyp,nodegit/node-gyp,mcanthony/node-gyp,aredridel/node-gyp,tempbottle/node-gyp,camsong/node-gyp,jqk6/node-gyp,samccone/node-gyp,vany-egorov/node-gyp,othiym23/node-gyp,nodegit/node-gyp,SonicHedgehog/node-gyp,nwjs/nw-gyp,vany-egorov/node-gyp,iWuzHere/node-gyp,bnoordhuis/node-gyp,nishant8BITS/node-gyp,nodegit/node-gyp,justinmchase/node-gyp,beatle/node-gyp,SonicHedgehog/node-gyp,saper/node-gyp,iarna/node-gyp,othiym23/node-gyp,Fishrock123/node-gyp,CodeJockey/node-ninja,TooTallNate/node-gyp,nodegit/node-gyp,abougouffa/node-gyp,SonicHedgehog/node-gyp,othiym23/node-gyp,iarna/node-gyp,mcanthony/node-gyp,iarna/node-gyp,abougouffa/node-gyp,nodejs/node-gyp,jqk6/node-gyp,pmq20/node-gyp,JacksonTian/node-gyp,camsong/node-gyp