Windows deps: Fix copying assimp DLLs correctly if assimp was not built during the run.

Conflicts:
	tools/Windows/BuildDeps.cmd
Windows deps: Remove building Qt two times. This was added during 4.7.x usage as the first make always failed on VC2008 (at least). Now we are using qt 4.8.4 and this is no longer needed, also it added 5-10 mins of unneccesary building, see https://bugreports.qt-project.org/browse/QTBUG-6470 for the original bug
Windows deps: Fix copying TBB DLLs in runs when its not actually build (this is important if someone wants to nuke his /deps and run build deps again). Move going to the ogre dir to a place where it cannot bug out.
Windows deps: Also copy assimp debug DLL on runs when its not actually built.
Renderer: Fix toolbar height offset in UI/input in --ogrecapturetopwindow mode. Fix crashing when running in '--fullscreen --ogrecapturetopwindow' mode when config does not already have 'fullscreen', UI api only used the config and it swapped fullscreen on/off that resulted in failing to create dx context on windows (ogre resolved wrong resolution even if you would pass it correct resolution when creating rendering window).