Addictive Community v0.9.0

Added

• Set automatic thread opening/lock date and time.

Fixes

• Addictive Community is now PHP 7 compatible (retaining the PHP 5.3+ support);
• Members were able to post in locked threads;
• Unable to delete multiple private messages (#61, thanks to @xQuByte);
• Disable 'Obsolete Thread' feature not working (#62).

Changed

• Error() controller renamed to Failure(): Since PHP 7 class name "Error" is predefined and used internally;
• Kernel module String renamed to Text due to new reserved words in PHP 7;
• Some table fields renamed to follow the separate_by_underscores_pattern.