[Bug 1089748] Filter by metadata.
Remove ACE submodule, just use the files.

This is the last submodule!
[Bug 1092229] Disable caching on APIs.
Remove useless output from cron jobs.
[bug 1100394] Implement simple_query_search in Advanced Search.
[bug 1090388] Remove confirm password field
[bug 1090392] Check whether username is taken
Fix pagination of Advanced Search results.
Better header and crumbs for Advanced Search results.
[bug 1079413] Make certain contributor articles collapsible.
Use django-cors-headers instead of CORS by hand.
[bug 1093044] Add robots:noindex to search results page.
[bug 1091088] Validate show= parameter on /questions
Bug 1065206 Fix
Improve requirements egg notations.
[bug 1094986] Check for misspelled emails
[bug 1094979] Reminders for needs attention questions
Fixed js module binary paths for docs.
[bug 1081939] Add related content to questions
Revert "[bug 1094979] Reminders for needs attention questions"

This reverts commit 5ac6a175efe536cece9aa1de74bc896be6fd3629.