Ticket #1613: If a tweet is a photo, show this photo as preview
Ticket #1586: Fixing double slash on redirect URL after login
Ticket #810: Adding clientside_validation module
Ticket #810: Implementing client-side live validation on registration form
Ticket #810: Fixing captcha validation and adding e-mail uniqueness validation
Ticket #810: Fixing captcha - adding Ajax support to Recaptcha module
Ticket #810: Validating password length, fixing passwords mismatch validation and displaying labels on login form
Ticket #810: Minor bugfix
Ticket #810: Checking password length as the user types and fixing layout bugs on small screens
Updating translations from QA, by Anas
Merge branch 'develop'