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.
Forced rebuild because of merge issues with astropy_helpers

* The commit history where astropy_helpers accidentally got
  modified is making rebasing off of master really messy, so
  rebuilt from current.
* CHANGES.rst not modified, so this is *not* ready to go.
  Should wait on 0.4 to shake out before updating that.
Update CHANGES to include cosmology clone operation

* Placed in 1.0 section
* Closes #2592
Rewrite Distance initializer so it can take lists of quantities.
Put back in automatic unit selector for distmod with array support
Merge pull request #2592 from aconley/copy_cosmo

Making slightly different cosmologies is awkward
Merge pull request #2261 from mhvk/distance-lists-ok

Distance should accept lists of quantities with different units
typo fix: arcseconds->milliarcseconds


[ci skip]
Expand locale known issue
Merge pull request #2760 from astrofrog/more-known-issues

Expand locale known issue
Describe bounds checking at toplevel of docs.
Fix formatting error that causes PDF/LaTeX docs to not finish.
Don't put all user documentation under the "what's new" heading in LaTeX docs.
Merge pull request #2763 from mdboom/wcs/bounds-check-doc

astropy.wcs returns nan when galactic longitude >= 180 degrees
Merge pull request #2764 from mdboom/docs/latex-fixes

LaTeX doc build fixes
Fix the test for an unedited astropy 0.3.2 config

Ignore the jquery_url line when calculating md5sum.
Modernize jsviewer configuration items.