added __all__ to a lot of __init__s
a few more __all__'s and some fixes; does not build locally though
Update vizier.rst

The main difference is that the output print format changed a bit
and than now these two print statements are identical:
* `catalogs.print_table_list()`
* `print(catalogs)`

I removed the `catalogs.print_table_list()` version.
Merge pull request #173 from cdeil/docs-vizier

Update vizier.rst
Merge pull request #170 from keflavich/issue170

Remove ConfigurationItem from API docs
Add links to Github and similar packages on the top-level docs page
Remove QueryClass.py
Make all print statements Python 3 compatible
Fix copy & paste error in nvas autoapi docs
Add API docs for splatalogue
Merge pull request #175 from cdeil/docs-links

Add links to Github, astropy.vo and pyvo on the top-level docs page
Merge pull request #180 from cdeil/fix-nvas-autodocs

Fix nvas API docs and add splatalogue API docs
Merge pull request #171 from cdeil/rm-QueryClass

Remove `QueryClass.py` ?
fix splalogue authors
fix splalogue authors (rd2: use 'originally contributed by')
Merge pull request #176 from cdeil/python3_print

Make all print statements Python 3 compatible
Add missing astroquery/nrao/tests/__init__.py file
Merge pull request #177 from cdeil/issue_177

NRAO test failures on Mac
Merge branch 'master' of github.com:astropy/astroquery
Add missing license line and minor cleanup