Working version of normalize-table
Normalize table is functional from the command line in terms of relative abundance or converting to presesence/absence.
Default write to HDF5 if present, formatting
Merge remote-tracking branch 'upstream/master'
Addition of test_normalizer.py
All tests pass.  Also formatting fixes.
Actual Commit to Add Tests

Was not added previously
Added HTML Interface

An HTML interface for use of the TableNormalizer command.  I don’t know
how to test this code but it seems to follow the form of the HTML
interfaces already implemented.  Includes all information needed by the
TableNormalizer command.
Moved error checking to all happen before load_table()
Reformat to pep8 standards
added Mike Shaffer to credits and put addition of normalize-table commands in ChangeLog
Merge pull request #550 from shafferm/master

Addition of normalize-table command line and HTML interface and TableNormalizer command