Huge Smaxx patch with some fixes by me:
- support for non power of two textures
- modelview matrix calculation optimizations
- health effect when picking up health crates or using vampirism
- rc plane training time trial
- fix visual gear drawing position (might require recheck)
- gamepad support
- reordered options in frontend
- updated binding options (subcaptions, descriptions and localizable names)
- cfg-dir parameter for frontend (allows teams/settings to sit on a usb flash drive for example)
- icons for chatroom user list
- Fix camera area with different zoom levels
- Fix memory leak when loading lowres texture
- Implement alternative horizont/sky sprites layout
- Remove deprecated try to load .32.png or .16.png texture