Add flash video onebox support
http://meta.discourse.org/t/will-there-be-flash-videos-in-the-future/7787
Update migrations to be compatible with Rails 4
Add custom headers for email messages

See http://meta.discourse.org/t/custom-headers-in-emails-site-settings/7480
Log all changes of user trust level by an admin
If the change doesn't go through, don't log anything
Add flash video onebox as disabled setting by default
Refactor code that raises deprecating warnings in Rails 4
wrapped I18n.lookup to inject the "js" namespace
removed unnecessary console.log
fool jshint
Mobile and tablet video rendering fix
http://meta.discourse.org/t/chrome-for-ipad-iphone-breaks-with-this-video-embed/7983
improve best of copy slightly
improve new category copy a bit
move bookmark to end
workaround for bust up button on topics
de-box the topic posts a bit

I CANT TAKE IT ANY MORE AHHHHHHH
Prevent errors in case #{rails_root}/tmp does not exist

Dir.mkdir is not recursive. i.e - It doesn't do the equivalent of `mkdir -p` but just plain `mkdir`.
And that is a problem if #{rails_root}/tmp is missing. More here.
http://meta.discourse.org/t/keep-getting-the-same-error-every-start/8214
Merge pull request #1167 from ZogStriP/i18n-helper

I18n helper
Merge pull request #1166 from jamesaanderson/mobile-and-tablet-video-rendering-fix

Mobile and tablet video rendering fix
Merge pull request #1140 from stephankaag/code_refactoring

Refactor code that raises deprecating warnings in Rails 4