Apply Xcode 5 suggested changes to projects
ShowcaseFilterViewController: Avoid retaining self inside blocks
GPUImageHSBFilter: Comment-out unused functions
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
Share demo schemes to enable Travis
Disable `pod lib lint` for now (broken as of CocoaPods 0.28.0)
Fix scheme name
Added a simple fallback to use the passthrough shader when a Gaussian blur is given a 0 pixel radius.