Account Tracker / Hill Lists / Meter Readings

Fixed a few issues introduced by iOS 7.

Also corrected the links to MWIS (iPad only). The app still redirects to Safari to view these pages, but the fix for this is with MWIS not my app.

Note that for users running iOS 7 and above, Bluetooth is no longer supported for copying backup files between devices. Apple have deprecated the way this works, and I need to completely rewrite it.