Fixed innumerous bugs in the menu
Menu:
 * Equipment now has it's own window;
 * Removed Menu container.
Added fade-out effect on notifications.
Added features to Teleport Gate's GUI
Re-implemented Guild window.
Fixed bugged methods in Colors utility class.
Refactored the way guild's members are stored
Code cleanup
Enabled cull facing on model rendering - performance increase
Code cleanup
Cleaned color picker code
More code cleanup
More code cleanup;
Also updated Guild NBT structure. (again)