0.3, Forming right redirect url for enterprise
0.3, Forming right redirect url for enterprise

This fixes redirect loop for github enterprise users.

But I still got `Error retrieving currently authenticated GitHub user. Unauthorized` error.
kausdev/drone,mvdkleijn/drone,feelobot/drone,letusfly85/drone,scrapinghub/drone,dakatsuka/drone,kpacha/drone,bsauvajon/drone,k2wanko/drone,cedk/drone,veghead/drone,depay/drone,reinbach/drone,deedubs/drone,toihrk/drone,beyondthestory/drone,jgoldfar/drone,letusfly85/drone,nils-werner/drone,opavader/drone,philipz/drone,arobson/drone,llinder/drone,gregory90/drone,bsauvajon/drone,alexethan/drone,adoyle-h/drone,psytale/drone,kaedroho/drone,gregory90/drone,Dataman-Cloud/drone,Dataman-Cloud/drone,olalonde/drone,scrapinghub/drone,mvdkleijn/drone,nils-werner/drone,gpndata/drone,olalonde/drone,mvdkleijn/drone,pombredanne/drone,skarungan/drone,llinder/drone,nevermosby/drone,Jurisdesk/drone,benschumacher/drone,deedubs/drone,deedubs/drone,psytale/drone,net2b/drone,gpndata/drone,jackspirou/drone,hkjn/drone,masarakki/drone,jdamick/drone,simonoff/drone,opavader/drone,shiena/drone,flyinprogrammer/drone,veghead/drone,bbmepic/drone,opavader/drone,opavader/drone,depay/drone,flyinprogrammer/drone,kaedroho/drone,msteinert/drone,zaro0508/drone,crhym3/drone,cdaguerre/drone,bbmepic/drone,hkjn/drone,oliveiradan/drone,feelobot/drone,jackspirou/drone,Jurisdesk/drone,philipz/drone,bbmepic/drone,albertyes/dronetest,zaro0508/drone,cedk/drone,depay/drone,Ablu/drone,globalxolutions/drone,carnivalmobile/drone,philipz/drone,rancher/drone,vaijab/drone,shawnzhu/drone,shawnzhu/drone,feelobot/drone,chlorm-forks/drone,NamPNQ/drone,bbmepic/drone,gregory90/drone,oliveiradan/drone,alphagov/drone,mikaelhg/drone,roth1002/drone,masarakki/drone,Clever/drone,nevermosby/drone,thomasf/drone,Jurisdesk/drone,kaedroho/drone,shiena/drone,thoughtpalette/drone,Jurisdesk/drone,adoyle-h/drone,thomasf/drone,shiena/drone,skarungan/drone,dtan4/drone,dtan4/drone,Dataman-Cloud/drone,lins05/drone,romlinch/drone,lins05/drone,gpndata/drone,pombredanne/drone,thoughtpalette/drone,hkjn/drone,kausdev/drone,arobson/drone,albertyes/dronetest,jackspirou/drone,fracting/drone,nevermosby/drone,Clever/drone,armab/drone,flyinprogrammer/drone,kpacha/drone,msteinert/drone,net2b/drone,vtolstov/drone,carnivalmobile/drone,llinder/drone,kpacha/drone,reinbach/drone,zaro0508/drone,toihrk/drone,vaijab/drone,olalonde/drone,llinder/drone,reinbach/drone,albertyes/dronetest,mvdkleijn/drone,romlinch/drone,adoyle-h/drone,mopemope/drone,mikaelhg/drone,shawnzhu/drone,PermissionData/drone,letusfly85/drone,fracting/drone,shift/drone,alexethan/drone,PermissionData/drone,Ablu/drone,roth1002/drone,beyondthestory/drone,scrapinghub/drone,shift/drone,roth1002/drone,PermissionData/drone,gregory90/drone,nevermosby/drone,jgoldfar/drone,donatj/drone,shiena/drone,alexethan/drone,benschumacher/drone,mopemope/drone,zaro0508/drone,carnivalmobile/drone,Ablu/drone,gpndata/drone,alexethan/drone,simonoff/drone,dakatsuka/drone,romlinch/drone,crhym3/drone,psytale/drone,adoyle-h/drone,vtolstov/drone,skarungan/drone,cdaguerre/drone,k2wanko/drone,dakatsuka/drone,arobson/drone,PermissionData/drone,depay/drone,simonoff/drone,scrapinghub/drone,kausdev/drone,dakatsuka/drone,alphagov/drone,alphagov/drone,cdaguerre/drone,beyondthestory/drone,mopemope/drone,dtan4/drone,jgoldfar/drone,mikaelhg/drone,crhym3/drone,simonoff/drone,Clever/drone,deedubs/drone,armab/drone,reinbach/drone,toihrk/drone,olalonde/drone,armab/drone,mikaelhg/drone,donatj/drone,jgoldfar/drone,kausdev/drone,rancher/drone,nils-werner/drone,net2b/drone,jdamick/drone,thoughtpalette/drone,toihrk/drone,globalxolutions/drone,oliveiradan/drone,oliveiradan/drone,philipz/drone,psytale/drone,msteinert/drone,globalxolutions/drone,fracting/drone,donatj/drone,kaedroho/drone,rancher/drone,cedk/drone,NamPNQ/drone,pombredanne/drone,k2wanko/drone,globalxolutions/drone,hkjn/drone,arobson/drone,letusfly85/drone,Clever/drone,feelobot/drone,dtan4/drone,armab/drone,skarungan/drone,thomasf/drone,thoughtpalette/drone,chlorm-forks/drone,kpacha/drone,shift/drone,beyondthestory/drone,roth1002/drone,shift/drone