Fix very rare / obscure bug

Fix bug where coincidental "I1" or "I4" is in the GLIMPSE file's full path,
which buggers up the operation.  Change "*I1*" to "*_mosaic_I1.fits",
commensurate with the full filename of GLIMPSE FILES.

This is one of those very-unexpected failure modes, and I'm sure more will crop
up as people start using this code.
	modified:   create_local_files/omni_glimpse_emaf.pro
	modified:   create_local_files/omni_glimpse_starsub.pro