Added groups - both on server side and client
Merge branch 'master' of https://github.com/sttwister/pennycount
Added a new list that contains receiving payments.
CSS refactorization - centered EVERYTHING! FUCK YEA!
No negative values on the UI
Merge branch 'master' of https://github.com/sttwister/pennycount

Conflicts:
	pennycount/static/scripts/views/app.js