Fix bug where list_boxes not working in client.py

Bug fixed is: https://github.com/sociam/indx/issues/94
Token errors on create_box in client, fixed
Create box operations more stable
Return content when deleting box.
Prevent client from trying to stop the reactor if it is already stopped
Fix token-requiring calls (e.g. update) not working in client
Fix delete sometimes not deleting objects
Remove unnecessary hunch
RSA signing for auth_keys. Add username to keystore DB.
Correct ubuntu psycopg2 package name
Merge branch 'openid' of github.com:sociam/indx into openid
Add additional error logging to twitter service
Increase twisted session timeout to 6 hours from 15 mins
Merge branch 'openid'