Revert "Try to use F# 3.1 for Travis build - fixing #459"
Revert "Try to use F# 3.1 for Travis build - fixing #459"

This reverts commit 28f094d485ecd0908bd62b88941061b24233bddb.

daniel-chambers/FAKE,pmcvtm/FAKE,gareth-evans/FAKE,ArturDorochowicz/FAKE,neoeinstein/FAKE,molinch/FAKE,ilkerde/FAKE,naveensrinivasan/FAKE,NaseUkolyCZ/FAKE,featuresnap/FAKE,pmcvtm/FAKE,hitesh97/FAKE,jayp33/FAKE,rflechner/FAKE,philipcpresley/FAKE,haithemaraissia/FAKE,mglodack/FAKE,mglodack/FAKE,beeker/FAKE,modulexcite/FAKE,wooga/FAKE,darrelmiller/FAKE,haithemaraissia/FAKE,xavierzwirtz/FAKE,neoeinstein/FAKE,leflings/FAKE,haithemaraissia/FAKE,mat-mcloughlin/FAKE,jayp33/FAKE,satsuper/FAKE,mfalda/FAKE,ArturDorochowicz/FAKE,dmorgan3405/FAKE,beeker/FAKE,satsuper/FAKE,mfalda/FAKE,MiloszKrajewski/FAKE,wooga/FAKE,brianary/FAKE,pmcvtm/FAKE,gareth-evans/FAKE,RMCKirby/FAKE,darrelmiller/FAKE,rflechner/FAKE,ctaggart/FAKE,ovu/FAKE,pacificIT/FAKE,yonglehou/FAKE,mat-mcloughlin/FAKE,philipcpresley/FAKE,naveensrinivasan/FAKE,daniel-chambers/FAKE,pacificIT/FAKE,JonCanning/FAKE,mfalda/FAKE,tpetricek/FAKE,ovu/FAKE,brianary/FAKE,neoeinstein/FAKE,modulexcite/FAKE,tpetricek/FAKE,MichalDepta/FAKE,xavierzwirtz/FAKE,dmorgan3405/FAKE,warnergodfrey/FAKE,mat-mcloughlin/FAKE,rflechner/FAKE,NaseUkolyCZ/FAKE,Kazark/FAKE,haithemaraissia/FAKE,warnergodfrey/FAKE,satsuper/FAKE,leflings/FAKE,MichalDepta/FAKE,xavierzwirtz/FAKE,yonglehou/FAKE,JonCanning/FAKE,MiloszKrajewski/FAKE,naveensrinivasan/FAKE,MiloszKrajewski/FAKE,leflings/FAKE,pacificIT/FAKE,jayp33/FAKE,mglodack/FAKE,wooga/FAKE,hitesh97/FAKE,MichalDepta/FAKE,jayp33/FAKE,daniel-chambers/FAKE,ArturDorochowicz/FAKE,ilkerde/FAKE,darrelmiller/FAKE,warnergodfrey/FAKE,molinch/FAKE,xavierzwirtz/FAKE,pacificIT/FAKE,RMCKirby/FAKE,MiloszKrajewski/FAKE,Kazark/FAKE,philipcpresley/FAKE,pmcvtm/FAKE,philipcpresley/FAKE,darrelmiller/FAKE,wooga/FAKE,dlsteuer/FAKE,rflechner/FAKE,JonCanning/FAKE,molinch/FAKE,ovu/FAKE,hitesh97/FAKE,brianary/FAKE,RMCKirby/FAKE,RMCKirby/FAKE,warnergodfrey/FAKE,hitesh97/FAKE,featuresnap/FAKE,mat-mcloughlin/FAKE,featuresnap/FAKE,Kazark/FAKE,Kazark/FAKE,tpetricek/FAKE,naveensrinivasan/FAKE,ctaggart/FAKE,dlsteuer/FAKE,ovu/FAKE,yonglehou/FAKE,dlsteuer/FAKE,leflings/FAKE,ArturDorochowicz/FAKE,dmorgan3405/FAKE,modulexcite/FAKE,NaseUkolyCZ/FAKE,mglodack/FAKE,modulexcite/FAKE,JonCanning/FAKE,featuresnap/FAKE,beeker/FAKE,MichalDepta/FAKE,tpetricek/FAKE,ctaggart/FAKE,mfalda/FAKE,beeker/FAKE,molinch/FAKE,satsuper/FAKE,NaseUkolyCZ/FAKE,gareth-evans/FAKE,yonglehou/FAKE,dmorgan3405/FAKE,daniel-chambers/FAKE,ctaggart/FAKE,gareth-evans/FAKE,dlsteuer/FAKE,ilkerde/FAKE,neoeinstein/FAKE,ilkerde/FAKE,brianary/FAKE