#716 non fullscreen quad for compositor pass + ISO Cpp bugfixes

[nop]

1/ Added non fullscreen quad feature for compositor pass.

Useful if the quad compositor should not cover the whole viewport.

Example of use :

const float fourThird=4.0/3.0;
CompositionTargetPass *tp = m_compositorTechnique->getOutputTargetPass();
tp->setInputMode(CompositionTargetPass::IM_PREVIOUS);
{ CompositionPass *pass = tp->createPass();
pass->setType(CompositionPass::PT_RENDERQUAD);
pass->setQuadCorners(-1,1,-1.0+fourThird,-1);
pass->setMaterialName("Ogre/Compositor/Passthru");
pass->setInput(0, std::string(inputBuffer));
}

Note : positions are given in normalised [-1;1]x[-1;1]
coordinates.

Todo : modify grammar parser to access to such feature

2/ Misc ISO C++ typo fixes

(removing extra commas and semi colons)

3/ Math::intersects

precision improved

[nop]

non fullscreen quad for compositor pass + ISO Cpp bugfixes

[Steve Streeting]

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Thanks!