* Added Russian translation. Big thanks to @TitovLab
* Added javascript doc
* Added cached language settings
* PHP warnings|notices|deprecated are not displayed. Hope no more javascript response breaks
* Minor bugfixes
* Improved session cache's config parameters to reduce config file queries
* Removed unused methods
* Changed some SP_Crypt class methods to static and factorized some functions
* Added some stuff to demo mode
* Added class CssMin for minimizing CSSs.
* Cached some config values in session to avoid config file readings.
* Improved URL handling.
* Minor bug fixes.