Add Vector interface
Add Path interface
Add Bezier path
Add PathTest
Add dragging
Add BSpline (only cubic for now).
Remove usage of Vector#tmp() in Bezier and BSpline
Add better visual test
Remove PathTest from the tests.
Replace CatmullRomSpline, reuse SplineTest by renaming PathTest to SplineTest.
Revert SplineTest to PathTest.
Revert CatmullRomSpline
Merge branch 'master' of https://github.com/libgdx/libgdx into misc
Update GdxTests to use PathTest
Remove SplineTest and CatmullRomSpline, rename CatmullRom to CatmullRomSpline.
Separate render and update and return the entity on shoot.
Add CollisionTest
Add the ability to test whether the canvas context is current. This is mainly useful for cases where you have multiple canvas contexts, and you want to know if any of them are current before loading a resource that requires an active context.
Add iterating over manifolds to the test CollisionTest
Cleanup a bit