Updated build target and project properties to SDK 19
Fixes #1175. A small fix. This is unfortunately somewhat fragile for non-compliant devices but the fact that it is needed at all leaves little other option. The GLES spec states that the number string portion should be alone, so the colon that this fixes simply shouldnt exist. As a precaution I have also added a check for a hyphen as that seems like the only other likely violation.
Fixes #1208.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Fixes #1167, removes convenience methods from RajawaliRenderer.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Post processing bug fix. The framebuffer texture was never bound. Also fixed the side by side renderer for VR applications.
Fixed LoaderOBJ to match Wavefront spec
Added Maven pom.xml
#1219 Animation refactor
- Heavy changes to animations. This will break a lot/all current implementations. Sorry mates!
- Animation now controls basic implementation of logical animation states.
- Animation3D extends Animation adding basic knowledge of transformable objects.
- Many of the animation classes have been split up to simplify their usage. We really need to be more strict with constructors, I blame myself for the previous state of animations.
- IAnimation provides a more convenient way of generically interacting with animations.
- This commit brought to you by Kirin Ichiban; Brewed For Good Times.
#1219 Rewrote AnimationQueue and added AnimationGroup
- AnimationGroup provides simple method of controlling one or more animations. Animations in a group will be played and paused at the same time. Animations in a group should not be registered to the scene, only the group itself.
- AnimationQueue provides similar functionality to original queue in that animations are played sequentially. As AnimationQueue extends AnimationGroup, only the queue should be registered with the scene.
#1219 Moved bulk of Animation3D to Animation and nearly finished bulk animations handling.
- AnimationGroup is almost done but does not handle RepeatMode properly in testing.
- AnimationQueue appears to work as intended in testing for all RepeatMode options.
Merge pull request #1216 from kedzie/master

I assume this was tested to some extent, if there are any problems we can always roll back.
#1219 Corrected bugs in AnimationGroup for repeat counts and modes.
#1225 Modified durations to use more detailed method names for get and set to prevent confusion.
Merge pull request #1225 from MasDennis/animation-refactor

AnimationQueue Improvements
LoaderOBJ added alpha support & fixed group hierarchy
Merge pull request #1238 from kedzie/master

LoaderOBJ added alpha support & fixed group hierarchy
Fixed Matrix4.setAll method to set axis vectors to columns instead of rows
Merge pull request #1242 from kedzie/master

Fixed Matrix4.setAll method to set axis vecs to columns instead of rows
Merge branch 'master' into Quaternions_Everywhere

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>

Conflicts:
	src/rajawali/Object3D.java