Apply Xcode 5 suggested changes to projects
ShowcaseFilterViewController: Avoid retaining self inside blocks
GPUImageHSBFilter: Comment-out unused functions
Fixes infinite loops when call endProcess by adding a flag to check if the filter has already started the end process
GPUImagePicture: check that the memory layout is valid for using the CGImage directly in GL

This corrects the fault introduced by my previous commit enabling CGImages to be used directly in GL.
Merge pull request #1298 from karlvr/gpuimagepicture-redraw2

GPUImagePicture: check that the memory layout is valid
Merge pull request #1295 from achambers16/fix-endprocess-loop

Fix infinite loops related to endProcess on GPUImageFilter
Removed setActiveShaderProgram and moved glEnableVertexAttribArray to renderAtInternalSize
Update podspec
Merge branch 'refs/heads/fix_xcode5_warnings'

Conflicts:
	framework/Source/GPUImageHSBFilter.m
Update GPUImageMac project to Xcode recommended settings
Merge pull request #1327 from rivera-ernesto/update_podspec

Update podspec
Merge pull request #1264 from rivera-ernesto/fix_xcode5_warnings

Fix Xcode 5 warnings
Merge pull request #1308 from achambers16/fix-RawDataOutput-bad-access

Fix exc-bad-access if GPUImageRawDataOutput is initialized during render
Update all demo projects to Xcode 5 recommended settings, add Default image to iOS projects
ES2Renderer: Remove unused variables
Remove unexistent library path
Fix "Unsupported Configuration - NSOpenGLView in One Shot memory enabled window" warning
Fix memory leaks and blocks' circular retentions
Add Travis configuration