[ADDED] Crashlytics, Localytics.
[IMPROVED] Async TestFlight takeOff.
[REMOVED] TestFlight token hidden.
[FIXED] Warnings, mostly to do with sign conversions.
[ADDED] Warning messages whenever site's password changes, allowing
the user to cancel the operation.
[ADDED] Make password counter resettable by holding down on the
counter increment button.
[FIXED] Schedule all UI-changing methods on the main thread. Fixes
some UI bugs.
[FIXED] Attempt to calculate password for deleted element.
[FIXED] MP-6: Close open alert when switching sites.
[FIXED] MP-7: Remind user to change site's password when creating a
new site.
