Change build.ps1 to build with VS2012 by default
Change build.ps1 to build with VS2012 by default

Haraguroicha/CefSharp,Livit/CefSharp,NumbersInternational/CefSharp,wangzheng888520/CefSharp,windygu/CefSharp,Octopus-ITSM/CefSharp,Haraguroicha/CefSharp,dga711/CefSharp,rlmcneary2/CefSharp,rover886/CefSharp,Livit/CefSharp,AJDev77/CefSharp,zhangjingpu/CefSharp,wangzheng888520/CefSharp,windygu/CefSharp,haozhouxu/CefSharp,wangzheng888520/CefSharp,joshvera/CefSharp,joshvera/CefSharp,yoder/CefSharp,NumbersInternational/CefSharp,illfang/CefSharp,dga711/CefSharp,haozhouxu/CefSharp,Haraguroicha/CefSharp,VioletLife/CefSharp,battewr/CefSharp,yoder/CefSharp,jamespearce2006/CefSharp,ITGlobal/CefSharp,VioletLife/CefSharp,illfang/CefSharp,Octopus-ITSM/CefSharp,ruisebastiao/CefSharp,ruisebastiao/CefSharp,Haraguroicha/CefSharp,AJDev77/CefSharp,rover886/CefSharp,haozhouxu/CefSharp,zhangjingpu/CefSharp,rlmcneary2/CefSharp,VioletLife/CefSharp,ruisebastiao/CefSharp,NumbersInternational/CefSharp,joshvera/CefSharp,Octopus-ITSM/CefSharp,Octopus-ITSM/CefSharp,battewr/CefSharp,VioletLife/CefSharp,AJDev77/CefSharp,rlmcneary2/CefSharp,wangzheng888520/CefSharp,zhangjingpu/CefSharp,gregmartinhtc/CefSharp,ITGlobal/CefSharp,AJDev77/CefSharp,twxstar/CefSharp,gregmartinhtc/CefSharp,haozhouxu/CefSharp,ITGlobal/CefSharp,battewr/CefSharp,jamespearce2006/CefSharp,windygu/CefSharp,NumbersInternational/CefSharp,battewr/CefSharp,twxstar/CefSharp,rover886/CefSharp,rlmcneary2/CefSharp,windygu/CefSharp,ITGlobal/CefSharp,rover886/CefSharp,jamespearce2006/CefSharp,yoder/CefSharp,yoder/CefSharp,zhangjingpu/CefSharp,twxstar/CefSharp,jamespearce2006/CefSharp,jamespearce2006/CefSharp,rover886/CefSharp,ruisebastiao/CefSharp,joshvera/CefSharp,Livit/CefSharp,dga711/CefSharp,illfang/CefSharp,illfang/CefSharp,twxstar/CefSharp,gregmartinhtc/CefSharp,gregmartinhtc/CefSharp,Livit/CefSharp,dga711/CefSharp,Haraguroicha/CefSharp