Revert "Update Go release version to 1.5.2 in Travis config"
Revert "Update Go release version to 1.5.2 in Travis config"

This reverts commit 30ebf6b82354fc1eb7a15aa0ff610b24a690724c.

There is no Go 1.5.2... Where did I get that info!?

abourget/hugo,fedelibre/hugo,mdhender/hugo,ffrizzo/hugo,vbatoufflet/hugo,Zenithar/hugo,mdhender/hugo,halostatue/hugo,tubo028/hugo,jygastaud/hugo,ffrizzo/hugo,ryanclarke/hugo,tischda/hugo,abourget/hugo,tjyang/hugo,digitalcraftsman/hugo,fhergomez/hugo,badoet/hugo,mdhender/hugo,ifraixedes/hugo,derekperkins/hugo,sprig/hugo,bramp/hugo,tatsushid/hugo,tubo028/hugo,sprig/hugo,mitchchn/hugo,gohugoio/hugo,derekperkins/hugo,ifraixedes/hugo,ryanclarke/hugo,tatsushid/hugo,anthonyfok/hugo,badoet/hugo,gohugoio/hugo,fedelibre/hugo,mdhender/hugo,soundrussian/hugo,tischda/hugo,halostatue/hugo,mayah/hugo,anthonyfok/hugo,gohugoio/hugo,vbatoufflet/hugo,coderzh/hugo,jygastaud/hugo,anthonyfok/hugo,digitalcraftsman/hugo,melo/hugo,bogem/hugo,kujohn/hugo,coderzh/hugo,fhergomez/hugo,bramp/hugo,kujohn/hugo,tjyang/hugo,Zenithar/hugo,mitchchn/hugo,MarkDBlackwell/hugo,fedelibre/hugo,melo/hugo,MarkDBlackwell/hugo,soundrussian/hugo,mayah/hugo,fedelibre/hugo,bogem/hugo