Merged revisions 8572,8577,8582,8590-8591 via svnmerge from

Merged revisions 8572,8577,8582,8590-8591 via svnmerge from
https://svn.ogre3d.org/svnroot/ogre/branches/v1-6

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  r8572 | Lf3T-Hn4D | 2009-05-05 06:51:10 +0100 (Tue, 05 May 2009) | 4 lines

  - Added new switch "Require Materials" which controls error message behavior
  when materials are not present for faces. Default is same as before. When user turns the toggle off, messages are not shown, since a serviceable, empty mat record is written when materials are missing.

  - Made missing material error message reported per mesh, instead of a flood of one per face.
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  r8577 | sinbad | 2009-05-11 11:08:36 +0100 (Mon, 11 May 2009) | 1 line

  Patch 2787256 (modified): D3D9 render texture classes had the wrong update() signature so were not protecting against device lost conditions
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  r8582 | sinbad | 2009-05-13 10:37:45 +0100 (Wed, 13 May 2009) | 1 line

  Bug 211: missing 'particle_system' keyword
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  r8590 | sinbad | 2009-05-17 15:32:30 +0100 (Sun, 17 May 2009) | 1 line

  Patch 2792813: fix uninitialised mFullScreen in Cocoa window, and expose WINDOW and VIEW custom params as with Carbon
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  r8591 | sinbad | 2009-05-17 15:55:21 +0100 (Sun, 17 May 2009) | 1 line

  Early-out optimisations to setMaterialName methods, to reduce their cost if the same material name is used
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git-svn-id: https://svn.ogre3d.org/svnroot/ogre/trunk@8592 8631bf8a-c64b-0410-883c-f3eb003322f7