git-svn: Support <branch>/<rev> in commit field
git-svn: Support <branch>/<rev> in commit field

commit=<rev> is still supported

fdroidtravis/fdroidserver,f-droid/fdroid-server,matlink/fdroidserver,matlink/fdroidserver,fdroidtravis/fdroidserver,fantastico/fdroidserver,f-droid/fdroidserver,f-droid/fdroid-server,f-droid/fdroidserver,OneEducation/AppUniverse_Server,fdroidtravis/fdroidserver,f-droid/fdroid-server,OneEducation/AppUniverse_Server,f-droid/fdroid-server,OneEducation/AppUniverse_Server,f-droid/fdroid-server,fantastico/fdroidserver,fantastico/fdroidserver,OneEducation/AppUniverse_Server,f-droid/fdroidserver,f-droid/fdroidserver,matlink/fdroidserver,fantastico/fdroidserver,f-droid/fdroidserver,matlink/fdroidserver,OneEducation/AppUniverse_Server,fantastico/fdroidserver,matlink/fdroidserver,fdroidtravis/fdroidserver