some renderer optimizations
fixed crashes - when # renderables < cpu core count and when adding renderables; fixed disappearing of wrong renderables when deleting renderables
fixed adding renderables with already loaded models; fixed undo/redo
hide the editor icon when removal of the renderable is undone / when new renderable is created
refactored static variable
fixed show/hide entity
update the cache of dynamic renderables when a renderable is removed
debug allocator is just a simple proxy in the release mode; some x64 compile time warnings fixed
refactor; fixed crash when game mode is started and stopped
refactor; only one editor icon per entity - closes #346
fixed snap to terrain
one component stored multiple times in the WorldEditor after game mode is started and stopped
some fixes for script interface
when a parent entity is transformed, child's local matrix does not change
little refactor; the input system attached to the game view
moving physical controller fixed
physics heightfield matching visual terrain
Terrain::getHeight correct even for scaled terrains
update according to review
Merge pull request #350 from nem0/optimizations

Optimizations