turns out this partial was unnecessary, just making nodespace_alter_access.html more dynamic
new partial for editing/granting nodespace access, new partial for displaying status messages after users perform actions
added WEB_PY_DEBUG param.  refactored checkbox rendering for nodespace invitation creation partial.  trpl-ng.js:  TODO comments; implemented controllers and added states to implement UI for metaspace admins to manage nodespace access; minor code refactoring and cleanup; directive for status message partial.  tripel_core.py:  TODO outlining NeoUtil changes for neo4j 2.x transaction support; Users.get_users_absent_from_nodespace method to query for users that can be added to nodespace; GRANT_NODESPACE_ACCESS_SANS_INV_ACTION priv for metaspace admins to grant nodespace access w/o sending an invitation.  tripel_web.py:  minor refactoring of grantable_privileges sorting calls; new pages for listing users not in nodespace, revoking nodespace access, and granting nodespace access; json mode for nodespace_access_edit_form and nodespace_access_edit; setting web.config.debug based on param value.