Merge pull request #853 from lossyrob/ingest-process

Modified ingest to prep for Accumulo ingest
Modified the colormap to read as an vector of byte triplets. Also
removed option value on Photometric Interpetation and added test for the
colormap reading.
Merge branch 'master' of git://github.com/geotrellis/geotrellis into feature/geotiff-reader-colormap-array
Merge pull request #854 from johanstenberg92/feature/geotiff-reader-colormap-array

Added extended parsing of the colormap data.
Merge remote-tracking branch 'upstream/master' into ingest-process