Fix off-by-one in LZW decoding

See
http://lists.openmicroscopy.org.uk/pipermail/ome-users/2014-July/004566.html
One more indexing fix for LZW
Merge pull request #1200 from melissalinkert/lzw-fix

Fix off-by-one in LZW decoding
Update auto-generated documentation

Repository: openmicroscopy/bioformats
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Generated by BIOFORMATS-5.1-latest-docs-autogen#105 (http://ci.openmicroscopy.org/job/BIOFORMATS-5.1-latest-docs-autogen/105/)