added JSDoc format annotations to the watch.js file
added first test, it does return something.
added data folder for test cases
don't want to commit test files.
added second test that walked triggers
patched a bug in the way directories would update stats and unset the
watch process
separated watch removal to destroy method, called by empty
now returns files with walked, updated readme to reflect changes
updated readme to show how to clear the cache and stop monitoring
disabled unit tests for now