Merged revisions 2748:2778 from branch 1.6. A few bug fixes (wrong drop/grab, normals handling, rotation animator) and many doc fixes.

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 - Fixed the OpenGL parallax mapping offset.

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 - Fixed active camera scene node registering itself twice (This causes anything parented to the camera to get drawn twice, potentially a major performance issue). Scene manager now calls "render()" to update the active camera's matrices prior to doing culling, rather than OnRegisterSceneNode.
 - Fixed the object-space lighting normal mapping/parallax mapping bug in OpenGL. Parallax offset still looks a bit weird in OpenGL compared to D3D IMO.
 - Fixed a compile warning in D3D9 driver.

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- automatic checking for checked flag.
- close handling now customizable
- serialization can handle incomplete xml's
- setEventParent now in public interface
- New function findItemWithCommandId.
- New function insertItem


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Let maya-cam animator react on a setTarget call to the camera which happened outside it's own control


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Fix bounding boxes for skinned meshes. Moved LocalMatrix computation out of the loop. This works for the meshes I tested, but might break with others. Further testing required.

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Add fixes to handle screen changes in fullscreen mode. This allows proper resolution changes with Alt-Tab etc.

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Merged from 1.6 branch, revisions 2684:2747. Windows serialization fix. Memleak in STL and LWO loader fixed. CursorControl under Windows fixed. CE compilation fixed. Example 21 for Linux fixed. IFileSystem and IFileList additions. Toolbar::addButton fixed. Device::run fixed. Anti-Aliasing on debug rendering disabled. Documenation updated.

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- Material type EMT_LIGHTMAP_ADD does now use GL_ADD in OpenGL which makes it look identical do the D3D version.


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Use io::path for DX library handling, in order to allow for Unicode compilation mode. Found by MadHyde

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Remove virtual from irrString. Probably no one derives from irrString, but this saves some bytes and cycles.

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Fix draw3dTriangle to render proper 3d objects, not just lines. In order to recover the previous behavior, set the 3d material to wireframe.

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Deprecated EGDS_MESSAGE_BOX_WIDTH and EGDS_MESSAGE_BOX_HEIGHT.


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 - Added tests to vector2d and vector3d regression tests for 0 to 1 equally using the s32 data type (Related to previous change).

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