UX fixes and tweaks

- Additional fixes for scan functions
- More CSS tweaks for compatibility and alignment
- Darkened stable button text (it was hard to read in latest tweak)
- Added force-repaint hack to radio set buttons on data bit modal
- Tweaked text in guest teaser popup
- Swapped out ICE icon, since original icon was not rendering in
Android 4.3 or earlier
- Minor bug fixes