-Multithreaded IDManager.getNewID()
*use implementation with free IDs stack (instead of classic pool)
-support for multiple UpdatePasses. Passes are added by name, and must be called between begin() end() functions.
-removed mutex from addEntity()
-commit() function added. Used to commit all changes made while update() call. Called automatically by begin() end() functions.
-more messy tests
-some documentation
-some useful code moved to functions
-adding components to existing entity
-opportunity to get entity by ID
-fixed calculating deltas
-sorting IDs arrays for allocating Templates
-fixed alignment caluclation
-added compile-time checks for "component_id" member existing in component
