Fixed autocompile when in off-line mode
Fixed autocompile when in off-line mode

Before, we marked potential builds as missing but downloadable. That fails if
we're in off-line mode. Now, we just mark them as available.

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