Added spot type light
Fixed a bug in the camera light angle calculation
Merge pull request #465 from AndrewJo/master

Bug fix in the light-camera angle calculation in lens flare
Mipmap support for compressed textures

Initial commit for mipmapping support on ETC1 textures.
Fix breaking changes from changes in TextureManager
Spot light model and shader calculations
Improved spotlight atten and spec, fixed ToonMat
Merge pull request #467 from Davhed/spot-light

Added `SpotLight`
Merge branch 'master' of https://github.com/AndrewJo/Rajawali
Fixed a typo in the mipmap chaining code
Merge branch 'master' of https://github.com/AndrewJo/Rajawali
Merge pull request #475 from AndrewJo/master

Mipmapping support for compressed textures
Merge branch 'master' of https://github.com/MasDennis/Rajawali