v0.2.0p1-reloaded.2

This Release is based on @Gistix's v0.2.0-preview.1, featuring

• His refactored Coop code
• A new configuration option: RenderWindow, set it to 1 to render the game again inside its window

In addition, besides of Portal Reloaded-specific adaptions (support of 3rd portal, mainly done by @Scriptor25), this includes

• PR Gistix#45 by @fholger, fixing player/floor height in Roomscale Mode
• PR Gistix#103 by @vittorioromeo, adding further configuration options: the camera's pitch/roll can now follow the orientation of the exit portal when portalling
• Another new configuration option: SeatedMode with automatic reset of position at the beginning of the Game (press left thumbstick to reset position again in the game, like in Roomscale Mode)
• Another (untested) attempt to fix Coop mode (see b6aec08)

Note that 6DOF option has been removed from config, because 6DOF is now always on. In addition SnapTurning is now also on by default, because it is useful for Seated Mode and does no harm for Roomscale mode.