bug fix for rsync on remote compressed file

[havok2063]

Closes #52. This PR fixes a bug when trying to rsync a file that is compressed on disk, but the template path is not compressed. It adds a wildcard to the end of the initial stream task rsync source to ensure it can find compressed files remotely.

from sdss_access import Access

access = Access(release="ipl3")
access.remote()

access.add("mwmAllStar", v_astra="0.5.0")
access.set_stream()

access.stream.task

[{'sas_module': 'ipl-3',
  'location': 'spectro/astra/0.5.0/summary/mwmAllStar-0.5.0.fits.gz',
  'source': 'rsync://[email protected]/ipl-3/spectro/astra/0.5.0/summary/mwmAllStar-0.5.0.fits.gz',
  'destination': '/Users/Brian/Work/sdss/sas/ipl-3/spectro/astra/0.5.0/summary/mwmAllStar-0.5.0.fits.gz',
  'exists': None}]

[joelbrownstein]

Looks reasonable to me.