Use the system monospace font in the docs
Fix the test for an unedited astropy 0.3.2 config

Ignore the jquery_url line when calculating md5sum.
Modernize jsviewer configuration items.
Restore io.fits and io.votable options
Fix error message about moved configuration items.
Add CHANGES entry.
Merge pull request #2772 from mdboom/config/issue-2772

Configuration warnings with clean 0.3.2 -> 0.4 upgrade
Deprecate (and fix) CartesianPoints
Add changelog entry
Move chagelog entry for #2727 to v0.4.1
Fix formatting of unusual unit bases.
Merge pull request #2727 from eteq/deprecate-cartesianpoints

Deprecate (and fix) CartesianPoints
Merge pull request #2798 from mdboom/unit/obscure-roundtrip

Originally valid FITS unit cannot be formatted
Merge pull request #1601 from mdboom/docs/make-monospace-font-match

Fix monospaced fonts in docs
Add a six submodule that reloads bundled or system six
Hide module variables
Use a module instead of a subpackage for the import proxy
Handle the case where system six exists but __version__ is not valid
Check minimum __version__ of system six
Alternative idea--use find_module to locate the path for the six module--looking first for the unadorned 'six' module that would be found on sys.path, and failing that looking up 'astropy.extern.bundled.six'.  Then load that module using the load_module machinery, but giving it the new name 'astropy.extern.six'.  That makes everything 'just work' and is compatible with six's own sys.modules games.