Add Level.matchPath() method to recursively match fs paths to array of BEM-entity objects; add path.split() helper function
Level.createIntrospector(): add `stopFilter` callback to `opts`, `creator` callback now receive `path` as a 3rd argument
Add `util.serializeBemPath()` and `util.deserializeBemPath()` methods
Add Level.resolveBemPath() and Level.resolveBemRelPath() methods and a basic test for Level.resolveBemRelPath()
Add a NOTE to Level.resolveBemPath()
matchPath() fixed to stop recursion when nextPath is empty