Changed draw method for shaders
added ShaderBatch.java
Merge with master
Merge branch 'master' into Issue#42
Some changes with the ShaderBatch
Merge branch 'master' into Issue#42
Added a private Shader Class to Look
Fix a bug with reloading the stage and some code refactoring
Removed adjustBrightness method
Merge branch 'master' into Issue#42
Merge branch 'master' into Issue#42
Merge branch 'master' into Issue#42
Merge branch 'master' into Issue#42
Removed isGL20Available method
Changed static final variable name
Refactor variable definition order
Merge pull request #533 from Catrobat/Issue#42

Fixes Issue #42