Build: v2c61Alpha

Build: v2c61Alpha (31.01.2014):
-- added possibiliy to enable/disable each shader in shader panel
-- added possibiliy to reset each shader in shader panel
-- added distance fog technic to dynamic light shader
-- added dof shader (types: dof / tiltshift)
-- added xml handler to save all shader settings for each client
-- improved contrast for image quality shader
-- added bloom to image quality
-- improved shader panel
-- added hotkey ("F4") to enable/disable all shaders
-- reworked vehicle shader