0.5.0

• Bundled with CherryPy standalone WSGI server
• Added copyright notes for original PyFileServer
• Changed signature of DAVProvider (and derived classes): provider argument was
  removed
• New method DAVResource.getMemberList() replaces getMemberNames().
• New class DAVCollection allows for more efficient implementation of custom
  providers.
• Forcing 'Connection: close', when a required Content-Length is missing.
  So it's possible now to return GET responses without knowing the size.
• New property manager based on CouchDB (addons.couch_property_manager)
• New property manager based on MongoDB (addons.mongo_property_manager)
• New sample DAV provider for MongoDBs (samples.mongo_dav_provider)
• Debug output goes to stdout (was stderr)
• Support davmount (rfc 4709).
• Added support for Microsoft FOLDER behavior.
• renamed displayType() -> getDirectoryInfo()
• Fixed RANGE response