Parse rules in Rulebook's __init__()

[mr-niels-christensen]

Call each rule with "dummy terms" and an artificial self, for which every method returns a parse tree with node type "call" and a reference to the called rule and the passed parameters.

[mr-niels-christensen]

See http://stackoverflow.com/questions/2144109/find-all-decorated-functions-in-a-module http://stackoverflow.com/questions/34439/finding-what-methods-an-object-has