Fix some achievement stuff.

Update VR instructions in README.

Add "minimize camera motion" option. Fix menu leaderboard issues. Add…

… player velocity debug display. Update README with Oculus info. Add more build scripts. Bump version number.

Fix player moves getting locked when entering a tesseract while stagg…

…ered.

Add Polish translation. Update main menu version indicator / website …

…/ language selector. Bump version number.

Fix janky player rotation immediately after spawn. Hide irrelevant co…

…ntrols menu items depending on whether gamepad is plugged in. Fix "load" console command unpause weirdness.

Fix debug build error. Update game submodule.

Audio update. Don't delete incompatible save games, just ignore.

Bump version number.

Sound update. Clean up unused console commands. Add option to disable…

… waypoints. Fix spinner physics weirdness. Fix instant spawn bug after loading a save game. Fix voxel selection bug while dragging voxels. Fix load/save menu gamepad weirdness. Console can no longer be active unless the game is paused.