fix text style index/type association when creating new text
use capital chordname in palette
fix chordname entry with Ctrl+K
TAB FONT: improves design of 'd' and 'f' for early Reanaissance style
fix crash if no audio driver found
fix crash on exit if no audio driver
Merge pull request #294 from mgavioli/TAB-FONT_small_improvements

TAB FONT: small glyph improvements