* Port TransitionManager from dekc.gl
* transition tests
* rename ViewportFlyToInterpolator to FlyToInterpolator
* export interpolation utils as non-experimental
* Compile with buble and bundle with webpack
* Reduce number of dependencies
* Support for tree-shaking
* Standalone, easy-to-understand example with small package.json
* Tests now work under Node.js even when loading mapbox-gl.
* Fix travis config