-removed some unused code
-fixed bug with struct destructors (Mallocator called __dtor instead of __xdtor)
-added unittests for events
-addded _d_eh_personality null implementation as LDC betterC bug workaround
-fixed bug in EntityManager
-added better support for non-betterC unittests
-added many new unittests
-slightly improved JUnit xml output
-fixed WASM compile script
-added new textures
-fixed model texture coordinaes in demos
-some minor bug fixes in demo
TODO: demos cpu usage in non-betterC mode