Merge pull request #7 from CyberAgent/develop

Develop
Create GPUImageLaplacianFilter.java
Create GPUImageBulgeDistortionFilter.java
Create GPUImageSwirlFilter.java
Update GPUImageBulgeDistortionFilter.java
Create GPUImageGlassSphereFilter.java
Create GPUImageSphereRefractionFilter.java
Create GPUImageWeakPixelInclusionFilter.java
Create GPUImageNonMaximumSuppresionFilter.java
Create GPUImageHazeFilter.java
Merge branch 'develop' of github.com:javierpuntonet/android-gpuimage into javierpuntonet-develop
Add new filters in sample
Correct code formatting, headers, documentation