(http://forums.rockbox.org/index.php?topic=8703.0 if I broke any of
those settings accidently).
* Add set_int_ex() which is the same as set_int() but adds a param which
is a callback that returns the voice ID to talk for the selected value
* Change the "pause on headphone unplug" to use meaningful strings in
the config instead of numbers, this setting will be reset.
* saves ~500bytes on the rec build :D
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12285 a1c6a512-1295-4272-9138-f99709370657