First crefl commit.
Was able to do some basic crefl information retrieval, still does
not get the nav data from the file.
Crefl frontend can now output binary files and has some extra command
line flags for testing. Still need to do the major step of interpolation
based on resolution/navigation.
Rewrote crefl frontend. Loads everything to binary for VIIRS crefl
files. Doesn't use VIIRS frontend for getting navigation data but
should in the future.
Finished VIIRS crefl files. Requires VIIRS frontend to work. Updated
VIIRS frontend to allow for each variable loading from a navigation
file. Added rescaling for the CREFL bands at the 4 main possible data
sizes. Added sharpening method/module. Added a simple crefl glue script
that has a special case for making the true color image.
Fixed python ll2cr bug when the frontend doesn't provide bounding
coordinates and is being remapped to a static grid.
Added units to all PROJ.4 grid definitions that need it and added an
equidistant cylindrical projection (eqc_fit).
Added basic (non-sharpened) MODIS crefl files to the CREFL frontend and
glue script.
Added more log messages to crefl frontend. Added crefl2gtiff bundle
script. Added the crefl package to the makefile for easy installing.
Added sharpening to MODIS crefl. Cleaned up crefl code and made it more
stable. Fixed rescaling parameters for crefl too.
Added lat_0 to lcc PROJ.4 projections to properly make 1SP projections.
Merge branch 'viirs_crefl'
Added all CREFL features. Updated crefl frontend to use the updated
VIIRS frontend boundary function (fill value).

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