x25

Build x25

Next build should be my submission build to Apple. The only thing left
is to clean up help page and add AppX library, and ensure all warning
messages are clear.

This version
- Added 3 overlays, Setup, Swiping, and Options. Setup should display
the first time you launch this version, Swiping should display next
time you open the main view, and Options last.
- updated the walkthrough screens to allow swiping, with a page
indicator at bottom. Updated colors to be less garish and rounded text
field corners.