incorrect logging removal fixed
new data format correctly parsed.  encrypted data being downloaded from dropbox on pin failure. Reachability onboard, but not being used yet.
fix data leakage and copying.  Authview handles most auth errors gracefully now, though without user feedback
rewrote networking code to use two-stage freshness check then get data.  am authenticating against live (tobmog) server, with real account and real data.  at this point, everything works, aside from a number of sad paths that need friendly error messages
Detail view now shows all fields, even ones not used by this app.  Encrypt and upload code is ready, tested and works, if/when we want to make this a read/write client.  (just noticed that IV calculation is missing!)
correctly display all fields of site item in details page, including breaking out arrays and dictionaries into lists.  Added first pass at error messages for login page.
Merge remote-tracking branch 'dan/master'