Upgraded adodb from v4.94 to v5.18 - tested locally with no issues. - Note: this is PHP 4.x breaking.
FS#1825 - Incorrect rendering projects->preferences
Fix for FS#1826 - Add new task - incorrect rendering
Partial Fix for FS#1803 - Exception when add new user.

class.notify was passing a null value to SwiftMailer which was overriding a default empty string.
Extension of Fix for FS#1826 - Add new task - incorrect rendering... as edit task had same issues.
Implementation of FS#1561 - Language selector

See comment on FS#1561 for rules.
Implementation of FS#1583 - "Due in Version": Default value needed
Fixed the remainder of short tag issues in CleanFS
merging in code from magicfinder