Use viewport sized intermediate rendertargets so that pixels outside the viewport never leak into post-processing. Added viewport multiplier mode to renderpath definition. Closes #265.
Fix Unlit HLSL shader in deferred modes.
Check also for MRT rendering without deferred rendering for whether needs a substitute rendertarget with a viewport smaller than the screen.
Warn if rtsizedivisor mode, that doesn't exist anymore, is used in renderpath definition. Fix sizemultiplier mode getting the correct XML attribute.
Travis CI: API documentation update at 2014-05-02 22:22:15 UTC.
[ci package]
For Travis CI - switch CI build to use OS X build environment.