* rulesets/TaskScript.cpp, server/TaskFactory.cpp: Add some assert
checks.
* server/EntityFactory.cpp: Remove some debug output.
* rulesets/mason/world/tasks/Combat.py: Add a simple example
of the interface required in a task script.
* server/EntityFactory.h, server/EntityFactory.cpp: Add a handler for
objects in rules files.
* rulesets/TaskScript.h, rulesets/TaskScript.cpp: Task class which
delegates functionality to a script object. Basically just a
stub at this point.
* server/TaskFactory.h server/TaskFactory.cpp: Factory class for
creating instances of Task classes.