DOC: Fix doc pointing to non-existent method
Merge pull request #430 from ElDeveloper/typo

DOC: Fix doc pointing to non-existent method
Add returns section to to_json numpydoc string
Add checks in __eq__ to descriptive_equality

descriptive_equality should not say that the tables look the same when __eq__
evaluates to False
Use appropriate tests to check for array equality

Fixes #435
Reset file position before trying to parse

Fixes #434
Add better tests for parse_biom_table

Previously, this function was not tested, which led to the surprise
identification of #434
whoops...
Merge pull request #436 from adamrp/issues_434_435_and_some_other_stuff

Issues 434 435 and some other stuff
whooops
BUG: subsample can now handle metadata
Merge pull request #438 from wasade/subsample_bug

BUG: subsample can now handle metadata
Merge pull request #437 from wasade/changelog

whoops...
BUG: to_json wasn't working
TST: reflecting command changes
TST: new test data
TST: more test data
TST: tests for biom_open
TST: removing write test for json
BUG: biom_open can now create writable files