python 2.7 / app engine updates
Update to webapp2
icon changes
Got some simple stuff working.

- Login and logout links appear, and prompt user for google
accounts authentication.

- For some reason, autogenerated files were being tracked, so I
made a real .gitignore file.

- Changed some style things that were bothering me.
Cleaned up code and added greeting.
merge user login
Merge branch 'djpetti-dash_devel' into dashboard_v2
Added icon for billing.

Currently, it jsut sends you to google.
Make billing thing actually do something useful.

Note that I don't really have a good way of exactly testing all
the datastore stuff, but it should work.
I am a little unhappy with the code duplication that was required
to implement this. I'll work on that.
Merge pull request #9 from djpetti/new_payment

Added Billing Info Option to Dashboard
Make modifications for dev version of dashboard.

It now sends you to the dev version of the signup app.
As we add dev versions of other apps, we will have it send you
to those as well.
Add nice little message for dev mode.
Fix app.yaml.
Merge pull request #11 from djpetti/dev_server

Dev server