Update README.md
Removing constness on system and entity objects
More const correctness corrections
Fix OS X build
Merge pull request #3 from nerdinand/patch-2

Fix OS X build
Merge pull request #2 from nerdinand/patch-1

Update README.md
Better, safer and faster threading support
No need for ctpl library anymore
Better build system, added gmock for unit tests
Fixed merged conflicts
Fixed an issue where ONTOLOGY_MULTITHREADING wasn't defined during tests
Build config header is now generated depending on what build options were selected
Renamed test target to tests because of reserved target names
Removing auto generated file Config.hpp
Wrote tests for Entity class
Added first stress test
stress test succeeds
Project name, ignore generated files
Merge branch with master
Don't track autogenerated files