More constistent spelling in plugin list comp.
Added some ASIO logging.
Added the ability to set the context version as well as the profile. Only
implemented in windows right now.
Works with JuceDemo now.
Added functionality to choose context version specification on OSX. Needs
to be tested on older versions. Fixed the invalid drawable error when
deleting the context.
Only using profile selection code if the OSX version is greater than 10.6.
Merge branch 'opengl'

Conflicts:
	modules/juce_opengl/juce_opengl.cpp
	modules/juce_opengl/native/juce_MissingGLDefinitions.h
	modules/juce_opengl/native/juce_OpenGL_osx.h
	modules/juce_opengl/native/juce_OpenGL_win32.h
	modules/juce_opengl/opengl/juce_OpenGLContext.cpp
	modules/juce_opengl/opengl/juce_OpenGLContext.h