Fix BuildTasks failing to build for correct VS version.
Fix BuildTasks failing to build for correct VS version.

msunardi/PTVS,crwilcox/PTVS,DEVSENSE/PTVS,modulexcite/PTVS,DinoV/PTVS,msunardi/PTVS,MetSystem/PTVS,Habatchii/PTVS,jkorell/PTVS,denfromufa/PTVS,mlorbetske/PTVS,DinoV/PTVS,alanch-ms/PTVS,DinoV/PTVS,modulexcite/PTVS,jkorell/PTVS,DinoV/PTVS,alanch-ms/PTVS,int19h/PTVS,gilbertw/PTVS,jkorell/PTVS,MetSystem/PTVS,Habatchii/PTVS,xNUTs/PTVS,denfromufa/PTVS,juanyaw/PTVS,MetSystem/PTVS,fjxhkj/PTVS,DinoV/PTVS,mlorbetske/PTVS,christer155/PTVS,fjxhkj/PTVS,modulexcite/PTVS,mlorbetske/PTVS,xNUTs/PTVS,Microsoft/PTVS,huguesv/PTVS,zooba/PTVS,zooba/PTVS,int19h/PTVS,gomiero/PTVS,zooba/PTVS,ChinaQuants/PTVS,fivejjs/PTVS,crwilcox/PTVS,dut3062796s/PTVS,Microsoft/PTVS,fjxhkj/PTVS,xNUTs/PTVS,christer155/PTVS,denfromufa/PTVS,bolabola/PTVS,Habatchii/PTVS,modulexcite/PTVS,huguesv/PTVS,zooba/PTVS,bolabola/PTVS,DinoV/PTVS,ChinaQuants/PTVS,dut3062796s/PTVS,gilbertw/PTVS,xNUTs/PTVS,msunardi/PTVS,denfromufa/PTVS,crwilcox/PTVS,modulexcite/PTVS,DEVSENSE/PTVS,juanyaw/PTVS,gilbertw/PTVS,gilbertw/PTVS,fjxhkj/PTVS,jkorell/PTVS,Microsoft/PTVS,msunardi/PTVS,xNUTs/PTVS,xNUTs/PTVS,gomiero/PTVS,huguesv/PTVS,ChinaQuants/PTVS,Habatchii/PTVS,Habatchii/PTVS,jkorell/PTVS,crwilcox/PTVS,alanch-ms/PTVS,huguesv/PTVS,bolabola/PTVS,zooba/PTVS,juanyaw/PTVS,int19h/PTVS,dut3062796s/PTVS,int19h/PTVS,Habatchii/PTVS,alanch-ms/PTVS,int19h/PTVS,gilbertw/PTVS,fivejjs/PTVS,fjxhkj/PTVS,MetSystem/PTVS,alanch-ms/PTVS,huguesv/PTVS,christer155/PTVS,christer155/PTVS,gilbertw/PTVS,fivejjs/PTVS,Microsoft/PTVS,juanyaw/PTVS,fivejjs/PTVS,DEVSENSE/PTVS,msunardi/PTVS,mlorbetske/PTVS,ChinaQuants/PTVS,DEVSENSE/PTVS,mlorbetske/PTVS,ChinaQuants/PTVS,Microsoft/PTVS,crwilcox/PTVS,gomiero/PTVS,bolabola/PTVS,huguesv/PTVS,msunardi/PTVS,int19h/PTVS,juanyaw/PTVS,gomiero/PTVS,denfromufa/PTVS,fivejjs/PTVS,christer155/PTVS,dut3062796s/PTVS,modulexcite/PTVS,christer155/PTVS,jkorell/PTVS,mlorbetske/PTVS,alanch-ms/PTVS,DEVSENSE/PTVS,dut3062796s/PTVS,MetSystem/PTVS,crwilcox/PTVS,gomiero/PTVS,denfromufa/PTVS,DEVSENSE/PTVS,juanyaw/PTVS,ChinaQuants/PTVS,Microsoft/PTVS,fjxhkj/PTVS,fivejjs/PTVS,bolabola/PTVS,MetSystem/PTVS,gomiero/PTVS,bolabola/PTVS,zooba/PTVS,dut3062796s/PTVS