[ANN] Changes from June till 20140919

Here's a list of user-facing changes since June till now, so I
won't have to put it on pastebin or copypasta all over.

- aruco tracker allows for estimating axis of rotation just like PT does.
- Oculus Rift SDK 0.4.2 now supported, including DK2 *and* position tracking.
- newer games using freetrack 2.0 protocol supported.
- joystick support actually works with EDTracker and other hardware, like Logitech.
- rotation axes can be rearranged freely in the mapping window.
- bug fixes and other irrelevant nonsense.
- we now have a stable branch and feature branches; hopefully users won't deal with broken builds.

Be careful how you use it.
-maintainer.

Stanislaw Halik <sthalik@misaki.pl>