[untested] implementation of Tag Database
kill old-demo
Add h2 dependency to maven
Testing database now
clean up UserDatabase new into UserDatabaseFactory
Better error reporting, testing complete
clean http side a bit
homer-http -> proteus
[untested] wire database to http
Begin testing, needed HTTP client code...
First test for unregistered user
Merge pull request #12 from jjfiv/master

Nuke old-demo, begin new-demo