Pic of day was cycling even if login page offscreen.

Happened only when app started already having login credentials. Would bypass login screen but doing so meant login view controller's appearance methods didn't fire thus didn't stop the cycling.
Better pic of day cross-fade.

Eliminated a weird artifact which would sometimes appear if the crossfade began just as the device was rotated.
Settings page uses last pic of day shown as bg image.
User name and pwd boxes restyled - also show (x) icon.
Removed no longer needed object for grayscale logo.
Increased brightness of settings bg image.

Still too dark?
Merge pull request #103 from montehurd/picOfDayUpdates

Pic of day updates