moved things around a bit. got rid of lib/mmm
added a lib file for yaml loading an a test for it
added test and lib code for running scaffold from yaml file
added timestamps to scaffold generator
added a fileHelper to testing module.

There's now a test that runs the relation generator and tests that the child
class is correctly modified.
forgot to add a parent symbol in the relation_test
made the test work and added a similar one for the parent model