Fix: Collada reader/writer now uses wrap_p for third texture wrap value instead of invalid wrap_r (thx @Yoran for bugreport).
Seems that Irrlicht uses u,v,w, OpenGL uses s,t,r and Collada uses s,t,p
Files written by older Irrlicht can still be read (aka reader still supports wrap_r)

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- Add -U__STRICT_ANSI__ option to c::b project files to allow compiling with -std=c++11 and add an error when trying to compile with Irrlicht with __STRICT_ANSI__


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- Fixed positioning of 2D elements in OpenGL. Test drawRectOutline passed. Thanks CuteAlien for report this issue.

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- Enabled cubemaps feature in D3D9.

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- Removed test for lock->modify->unlock mipmaps (this feature is no longer supported in the engine).
- Added test for lock->modify->unlock cubemap.

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(Scene serialization had been extended in the past)

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@5273 dfc29bdd-3216-0410-991c-e03cc46cb475

(still can't control those cameras without cursor certainly).


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Thanks @AlexAzazel for report and test-model.


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- Fixed render targets handling in ITexture::lock for OpenGL driver (floating point, depth and stencil formats not supported).

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 * ECF_A1R5G5B5
 * ECF_R5G6B5
 * ECF_R8G8B8
 * ECF_A8R8G8B8

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- Fixed issue with cube maps filtering in OpenGL.

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- Added cube maps support to PVR file loader.
- Added support for load cube maps directly via IVideoDriver::getTexture call.

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- Get rid of some "misleading-indentation" warnings in gcc6
- Fix some compile warnings in aes which got handled as errors by some c++11 compilers.


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- Resetting Randomizer with 0 or no longer breaks it (will be set to 1). Same for other numbers for which it wasn't defined.
- Randomizer now returns range 0..randMax as documented and no longer 1..randMax as it did before. randMax got reduced by 1.
- Using now same random numbers as std::minstd_rand0. Not sure if the others were wrong, but documentation mentioned they are for mixed linear congruential generator from L'Ecuyer and as far as I can see we don't use that (that one mixes 2 calculations). We seem to use just a linear congruential generator. (I'm no expert on all this, just what it looks like from net articles).


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Probably something which will happen now a lot, would be nice if someone would update the ogre loader.


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- Improved IRenderTarget::setTexture warnings.
- Minor improvements for textures in D3D9 and OpenGL drivers.

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- Changes for D3D9 texture code (at now it looks like OpenGL texture code). Those changes was required for upcoming cubemaps support.
- Minor improvements in COGLCoreTexture.

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COpenGLDriver doesn't seem to need COpenGLCacheHandler or COpenGLTexture as friends. So removed those.
If one of them is needed again please write 'friend class COpenGLCacheHandler' instead of 'friend COpenGLCacheHandler' as 
older gcc compilers (4.4.7) won't accept it otherwise.
Thanks @umen for reporting.


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