twitter oauth added

managed to get twitter oauth to work; visible that twitter login
complete if run python -i web.py in terminal.  however I'm a bit lost
when it comes to {% if User %} etc, ie actually making use of the
twitter API to access user information and confirm that a new user is
in the MongoDB database.  So what needs to be done next is to take the
oauth object that I've stored to a session in spnet/web.py, then
somehow use this to update the tables.
clean up

removed a few testing print statements