Added accessors for uploader and upload date
More tests

- Added an outline for an integration test
Merge branch 'alpha0.5' of github.com:openworm/PyOpenWorm into alpha0.5
Removed pytz dependency
Renamed some things, moved some things around
Merge branch 'alpha0.5' of github.com:openworm/PyOpenWorm into alpha0.5

Conflicts:
	tests/test.py