Made geometry creation use IMesh instead of IAnimatedMesh. Moved Sphere meshbuffer into geometry creator and changed sphere scene node accordingly.

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Fixed a couple of spelling mistakes.

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Mem leak fixed in d3d RTT code identified by vitek. Some redundant code removed and OpenGL shader materials fixed for changing number of textures.

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disabled windows hires timer on multi-cpu systems when the process is running on more than one cpu. bug reported by _Alex`86_ and Halan.

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Temporarily disabled the non-alpha textures for d3d due to lack of mipmap support. Have to fix that first.

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Added a new texture creation flag for specifying the desired texture format. The new flag chooses a non-alpha channel texture format. This will save some texture memory (one fourth for 32bit textures).
Fixed another COpenGL render state bug.
Fixed several color conversion methods.

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fixed bugs with listbox automatic visibility of scrollbars, and clicking on listbox scrollbars when in a combo box.
items in a listbox are now selected as you type their text.

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fixed a bug where opengl scissor tests were not disabled after drawing 2d images with an invalid clipping rectangle.

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stole lightfeather's quaternion::toEuler function by mm765 (with permission) as it deals with singularities. added a constant for pi/2.

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OpenGL render targets are now the same way up as in the other drivers. When setting the projection matrix of a render target, the Y axis is flipped and polygon winding is switched to counter-clockwise.

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Changed OpenGL default Renderstate to ALPHA_TEST being disabled. Some indentation changes in other files.

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Exposed findTexture in IVideoDriver to check if a texture was already loaded.
Reordered some more OpenGL render state settings in the materials.

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Fixed scene node deserialization which was completely broken since several revisions due to newly added attributes.

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fixed getOriginalSize in textures in Burning's renderer. Had to add a new method to get the size of the largest mipmap (getMaxSize), as the texelarea functions needed this value.

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fixed a bug I caused in CGUIMenu and CGUIContextMenu. added some more window symbols to the built-in font and the skin.

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Changed addArrowMesh parameter order. Changed OBJ loader to use stringc instead of dynamically allocated char array.

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Added navigation through the GUI using tab and the shift and control keys. Added keyboard navigation for most elements. Fixed that annoying bug where you had to click twice to change focus.
Added IGUIElement::isMyChild, isPointInside,  SEvent.GUIEvent.Element. 
Changed setFocus and removeFocus to return bools.
changed quaternion::toAngleAxis to use iszero. 

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added IUnknown::getReferenceCount and IMeshCache::clearUnusedMeshes to flush unused meshes from the mesh cache.
Fixed CGUIModalScreen, which I broke with the IGUIElement changes. Also fixed a small bug with the tooltip appearing directly under the mouse cursor.

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