Includes:
- Text: fix possible overflow with "white-space: pre"
- Fonts: getFontFileNameAndFaceIndex(): return family type
- Fonts: account for _bias in Font hash
- epub.css, fb2.css: remove hardcoded monospace font names
- Fonts: allow scaling monospace fonts
- Fonts: allow adjusting fallback font sizes to x-height
- HTML parser: trust xml encoding before html charset
In our list of fonts, show a "M" indicator alongside
monospace fonts, and allow long-press to select the one
to be use for "font-family: monospace".
Add 2 options to Font settings, to scale monospace fonts
by a percentage, and to adjust fallback fonts to their
x-height.