renamed QuaternionArcballExample, QuaternionLatLonExample, & GPUParticleSystemExample to start with lower case to match all other example naming; renamed simleEventsExample circle class filenames to begin with upper case; videoGraberExample now tries to open cam 0
ofxSimpleSlider now removes event listeners in destructor
renamed simpleEventsExampel circle class to upper case, Circle class now removes event listeners in destructor
threadedImageLoaderExample now stops thread on exit
alphaMaskingShaderExample no longer resizes window to fit image
vboExample & floatingPointImageExample mesh/vertex helper functions promoted to member functions in testApp
imageLoaderWebExample now stops thread on exit
systemSpeakExample now stops thread on exit
fixed bitmapstring typo & some formatting in osxVideoRecorderExample
changed cout to ofLogNotice in firmataExample
replace cout with ofLogNotice & formatting cleanups in windowExample
replaced _TEST_APP_H defines with pragma once
stop thread on exit in threadedImageLoader
added missing space to ofQTKitGrabber logging
added ofGetBackground which returns the current renderer background color as an ofColor
merged with upstream
ofxSimpleSlider now uses push/pop style
Merge pull request #2253 from danomatika/develop

added ofGetBackground & various small example tweaks/updates