[bug 899482] Nix the suggestions box on homepage
[bug 918854] Switch to gravatars
Update db strings
Update django debug toolbar to 0.9.4.
Move all decisions about question and permissions to the models.
[bug 602990] Allow moderators to reply and edit locked questions.

Based on add_answer and change_answer permissions.
[bug 931274] Add Windows 8.1 to aaq & better fallback for WinNT
Update to detect windows 8.1
Update Gravatar tooltip text
Fix huge images in emails
Properly cache the image attachments for answers.

This works around django-cache-machine not caching empty lists.
Featured get involved section on home
[bug 932300] Fix mixed-content issues with Gravatars
[bug 876673] Article for close button brokes page layout on revision page
[bug 932301] Collapse whitespace in db strings

Tower collapses whitespace in a string before passing it to gettext to
be translate. The problem here is that we weren't collapsing whitespace
in db strings. So when tower goes to do the gettext thing, it would
collapse the whitespace and then the string wouldn't match a msgid and
then it wouldn't get translated.

This works fine for single line strings because they don't have
whitespace to collapse. Looks like all the db strings were one-liners so
we never saw this problem until now.

This fixes it by calling strip_whitespace on the strings coming out of
the db so they match what tower is doing.
[bug 899482] Remove Suggestion Box link from mobile too.
Remove no-longer-needed sample data.

* Home page does not link to these articles anymore.