Introducing RajawaliScene!
Merge pull request #651 from Tenkiv/rajawali_scene

RFC: Introducing RajawaliScene!
Added RenderTarget class
Added clone() method for RenderTarget class
Added RenderTargetCube class

RenderTargetCube inherits from RenderTarget class with support for
dynamic cubemapping.
Added APass and RenderPass classes.

APass represents a rendering pass to be used by the EffectsComposer.
These will be used for multiple rendering pass effects.
Update README.md

Added a note about our release changes until the website is available.
Small change in the method signature of render method to accommodate
specifying different render target.
Accomodate changes in the render signature in the RajawaliScene class.
Initial commit for ShaderPass, MaskPass, and EffectComposer classes.
README: Linkified v0.9 tag reference
Merge branch 'master' of https://github.com/MasDennis/Rajawali
Updated the tutorial list
Fix for issue #680 "RotateAnimation3D not working with cam?".
The rotation wasn't set when using a quaternion as opposed to a rotation matrix.
Update ScaleAnimation3D.java

ScaleAnimation 3D with floats
Update Number3D.java

Number3D with ona value like in vec3(1.0) in the shaders
Merge pull request #682 from androidder/master

Simplicity for ScaleAnimation3D and Number3D as vec3 (shader)
Signed off by Andrew Jo
Added check for power of two on bitmap textures.