fixes #71. Remapping now raises an exception when none of the bands were
successfully remapped.
added ninjo tiffs to comparable files in compare.py
Added integration tests and separated them from the unit tests.
fixes #72. Forgot to add the 'proj4' field in the configuration lines
created by the config_helper.
Changed default geotiff data type to 8-bit (previously 16bit).
Preemptively fixed lookup table scaling so that fill values are
respected.
Updated docs to state the default data type for geotiff glue scripts as
being 8-bit.
Mentioned in release notes that geotiffs are now 8-bit by default
added missing basemap dependency to polar2grid.viirs setup.py
fixes #77. Glue scripts now accept symbolically linked files and keep
the symbolic directory.
Added non-TC VIIRS geolocation as a second option for the VIIRS
frontend.
fixed #81, crefl grid info gets taken from lower resolutions now
Merge branch 'master' into cris_rayg_201303
Caught DR-RTV code up with master. Had to solve conflict in
viirs_guidebook because of the work done to allow TC and non-TC
navigation files.

Conflicts:
	py/polar2grid_viirs/polar2grid/viirs/viirs_guidebook.py