Merge pull request #2 from devcongress/dev-ui

Dev ui
Resolved merge conflict.
Fixed the banner bug.

The appropriate banner now shows up depending on the page.
Added required parameters to __init__.
Let's use GitHub/Bitbucket username as nickname.

We won't have to deal with two identities per person. Your
GitHub/Bitbucket username is what you'd be known with.
SQLALCHEMY_DATABASE_URI instead.
Added psycopg2.
Sign up as a hacker.
removed the application.html file to pull new one.
manually pulled the new files, fixing inconsistencies.
added the application.html file
added Google Analytics code.