Remove custom install docs from the main index.

This is effectively unsupported,
and we shouldn’t pretend to support it.
Lower celery pre-fetch settings.
Remove custom listener for ericholscher.com
Add doxygen to official build packages. Refs #388
Update fabfiles for 14.04 server upgrade.
Catch all exceptions here, for now.
Update translation files
Update theme
Fix silly runtime error
Rejigger README
Add new languages
Merge remote-tracking branch 'remotes/upstream/master'