Added source and javadoc generation.
Make sure that world.setSystem(s) does not override system's passive flag. Get rid of setPassive override for passive entity systems.
Getting rid of the Mapper annotation. Can just look for Component mappers directly. Got rid of ComponentMapperInitHelper class. Added support for System inheritance, by looking for mappers in the parent classes as well.
Getting rid of the Mapper annotation. Can just look for Component mappers directly. Got rid of ComponentMapperInitHelper class. Added support for System inheritance, by looking for mappers in the parent classes as well.