This change makes sure there is both a level indicator which goes into warning and critical display mode for low levels and one which goes into the same for high levels in the manual test for level indicator.
Refs #2071.
- Get the scroller orientation from the xib.
- Fix the nonsensical calculation of _isVertical when given bounds.
- Since orientation comes from the xib, had to re-nib2cib everything to be safe.