DOC: module level ex starting
Merge branch 'master' of github.com:biocore/biom-format into module_level_example
DOC: module level doc string
Merge branch 'master' of github.com:biocore/biom-format into module_level_example

Conflicts:
	biom/table.py
Merge pull request #424 from wasade/module_level_example

Module level example