Merge pull request #2 from matiu/gus/pin

add crypto to pinService and tests
Merge pull request #3 from matiu/gus/pin

fix signout
Merge pull request #4 from matiu/gus/pin

fix top balance
Merge pull request #5 from matiu/gus/pin

Lock
Autofocus and show the second PIN input automatically. Hide submit button. Allow only numbers
fix digest error
Display PIN form only on mobile devices
Mobile: when select a wallet, hide the list of them
pin fixes