* Expand on Gesture Implementation
Adding Gesture info as discussed: https://github.com/mapbox/mapbox-gl-native/issues/2278#issuecomment-273685832
Not sure if using codeblocks is kosher.
* Update styling and verbiage
* More updates
* [ios] -requireGestureRecognizerToFail: seems to be enough
* [macos] Added corresponding macOS documentation