fix bug 857566: Ensure _() imported in user/backends.py
fix bug 815768: Strip markup found inside <iframe>
Merge pull request #997 from lmorchard/857566-fix-user-admin

fix bug 857566: Ensure _() imported in user/backends.py
Merge pull request #998 from lmorchard/815768-filter-out-iframe-contents

fix bug 815768: Strip markup found inside <iframe>
fix bug 854145 - Allow custom CSS for all code samples
Fix bug 816193: Correct locale in rev dash urls, PEP8 fixes
Fix bug 781350: Do not clean out timezone field
Fix layout of revision comment box in translate mode
Making some updates to improve docs
Merge pull request #1002 from Elchi3/timezone-781350

Fix bug 781350: Do not clean out timezone field
Merge pull request #1003 from Elchi3/translation-revcomment

Fix layout of revision comment box in translate mode
Merge pull request #999 from darkwing/sample-css

fix bug 854145 - Allow custom CSS for all code samples
Merge pull request #1004 from darkwing/doc-update

Making some updates to improve docs
Merge pull request #1001 from Elchi3/dash-404locale-816193

Fix bug 816193: Correct locale in rev dash urls, PEP8 fixes
Fix typo in base.html
Merge pull request #1007 from Thibaut/patch-1

Fix typo in base.html
Localizing standards message
Fix bug 843062: Disallow '+' character in usernames.
Merge pull request #1006 from ubernostrum/username-characters-843062

Fix bug 843062: Disallow '+' character in usernames.
Fix bug 859449: Set default ToC level to H4 and up.