added CashDenomination
`numberForCurrencyHelper` now accepts strings
enhanced styles
weird stuff
simplified computed properties cache path
pusher events listener now runs as a rake task

refactored `BandangoPusher` so that it handles errors in a better way
refactor Bandango.SessionController

removed `Bandango.CurrentUser` in favor of use `Bandango.User`
removed */me* routes
whitespace

(mostly)
fixed Bandango.User#isCurrentUser