tree render now shows if the user has visited a particular node
added basic hooks for editing pages. main tree rendering improved, switches based on user visited/node type
initial form created. entry page renders form. no redirects or validating yet
simple form allows a user to submit concept atoms
successful entry of concept atom tag works if user is entering successive atoms
cleaned up code, added some error checking
fixed typo in forms that caused a crash, added redirect back to landing
Merge branch 'master' of http://www.github.com/kevincwebb/conceptum

probably a base.py conflict? it shall be resolved...