Added new `orientable` option, which enables sync with compass of gyroscope-equipped touch devices.#92
Touch devices having `orientable` enabled bind to viewport's `"deviceorientation"` event on `play` and triggers Reel's `orient` event with alpha, beta and gamma angles as arguments. #92
Enabled `orientable` on the click-free panorama example for testing. Should receive a dedicated example later on. #92
Same as `pan` event, the `orient` event is also synced to the ticker and flags `oriented` if functional, to disable animation, which would otherwise interfere with the orientation-based position. #92
The alpha angle (compass) is converted directly to fraction. #92
Added a dedicated example or `orientable`. #92
Fixed a bug preventing proper mouse recenter when x == 0
New `rowlock` option will freeze the vertical axis allowing only for programmatic row change. #191
New complementary `framelock` option will freeze the horizontal axis allowing only for programmatic frame change. #191
Compiled and documented. #191
Merge branch 'gh-191-locks' into development
Merge branch 'gyroscope' into development
Compiled