catch exceptions better in last_seen model func
fix bug in vol processing
improve performance for how we save volunteer hours in model
small refactor messup
change volunteer browse view to show account details
change credit to an integer and store cents
add last_seen and full_name properties to vol model
update admin for volunteer; correct unicode repr
move permission field to the User model, and added processing to that effect; tweaked model fields, and migrated
add an initialization command
fix wrong var names in gen_username
Merge pull request #72 from bepetersn/rawstrap

create real permissions architecture, initialization command, generally tweak models and vol. browse