Set glyph width/height separately from texture coordinates (Bug #1096)

Requires MyGUI SVN
Don't fade out screen if teleport target cell is not found
Remove summoned creature and its effect when it is killed (Fixes #1341)
Don't knock down from fall damage in onHit (CharacterController is doing that already)
Move ESM terrain data handler to esmterrain component so it can be used by the editor (Feature #1597)
Move terrain grid implementation to a component so the editor can use it (Feature #1597)
Avoid calling RenderTarget::update from within loadResource