Use the system monospace font in the docs
Allow for custom datatype names in votable

This should allow end users to workaround VOTable files that contain
invalid datatypes.

Also adds two datatypes seen in Vizier tables: "unsignedInt" and "unsignedShort".
Update docs about datatype mappings.
Add changes entry.
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.
Don't warn on explicitly requested FITS clobber.

Also reindented "if" statement for more clarity.
Ensure in-place ops on Angles with non-angle result do not corrupt the instance
Fixed kernel multiplication with  numpy floats
Merge pull request #2786 from anntzer/fits-clobber-dont-warn

Don't warn on explicitly requested FITS clobber.
Added a changelog entry referencing #1963
Merge pull request #2718 from mhvk/quantity-output-wrong-unit

Ensure in-place ops on Angles with non-angle result do not corrupt the instance
Merge pull request #2652 from adonath/fix_for_#2174

Fixed kernel multiplication with  numpy floats #2174
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