Remove pyqi/test.py and pyqi_test_data/
Update top-level __init__.py

No longer has an __all__, updated author list, copyright
Remove references to QIIME copyright
Fix a couple of imports
Merge branch 'master' into legacy-cleanup

Conflicts:
	README.md
Remove legacy optparse code

Fixes #56.
Update setup.py
Add ChangeLog.md
Fix a couple of errors/warnings in docs
Add Rob to top-level credits
Add Rob to setup.py credits
Merge pull request #186 from jrrideout/legacy-cleanup

Legacy code cleanup