Switch tests from midje to clojure.test and remove midje dependencies.
Bumping dependency versions.
Use one OWLOntologyManager per ontology and add a new  function to access it.
New code for parsing catalog.xml files.
Smarter load, merge, and save functions.
Remove unwanted global .
Minor cleanup.
Allow for multiple annotation properties for most annotation functions, plus cleanup.
New code for parsing Manchester syntax strings for class expressions.
New code for rendering class expressions to Manchester syntax.
Generalize 'extract' to work with any OWLEntity.
Bump version number and update docs