Add checkpointer module
Delete phpbb bits
Test planning
Make casper optional
Test suite will supply configuration
Make tree preparation generic
Require config file path to be passed in since wolis is now more of a library
Genericizing
Directories may not exist, create them as necessary
Checkpointer does not work yet
Application is responsible for providing the test plan
Allow application override of test cases package name
Allow application to perform post-test work