Fixed registering of local feeds with autocompile
Fixed registering of local feeds with autocompile

Register the new autocompiled implementation against the interface we wanted to
build, which is not necessarily the one in the <feed-for>.

timbertson/0compile,0install/0compile,dabrahams/0compile,0install/0compile,0install/0compile,timbertson/0compile,gfxmonk/0compile,dabrahams/0compile,gfxmonk/0compile