Change default demo login credentials.
Upgrade mysql2 gem in order to make things work on OS X Mavericks
Update various gems for Ruby 2.1 compatibility
Begin upgrading to Rails 3.2
Fix Topic.find_by_site_key_and_topic_key making the result readonly
Fix view specs
Configuring local mail delivery with mailtrap

sending mail with smtp on port 2525 (default mailtrap)
Implemented notification to posters

Send mail to every posters on a topic except current poster
Fixed text mail displaying html entities

using method found on
http://stackoverflow.com/questions/11756304/rails-escapes-html-in-my-plain-text-mails/11763211#11763211
Fixed link in posters notification template.
Moved tests of sending mail to model

Added test to detect moderation status changes in order to send only one
notification when message is approved (manually or automatically).
Added unicorn to Gemfile in order to use it on deploy
Splitted after_create and after_save callbacks

in order to notify other posters after creating message without
moderation, and after save with moderation activated.
Send commenters notification in French

These branch would probably never be merged in upstream, configuring for
personnal usage.
Fixed UTF8 error
Updated Gemfile.lock