Initial commit
Adding separate sigin page

Separate singin page added.
Some Facebook access API decoupled in separated class
called FacebookHandler. Every webapp2 class whom inherites
this class can access to current_user dynamic property
to access current signed in user informaion.
Albums list template page added.

config information separated in another file
albums template + route handler class added. (in progress)
Decoupled facebook login from backend.

In this design facebook login all handled by frontend
javascript API and once it's done we inform backend to
process the result.
Adding more functionalities to Facebook service.
Merge branch 'master' of https://github.com/boynux/SimpleLife