1) Introduces apps/features.txt that controls which strings are included
for each target based on defines.
2) .lng and .voice files are now target specific and the format versions
of both these file types have been bumped, which means that new voice
files are needed.
3) Use the 'features' mechanism to exclude strings for targets that
didn't use them.
4) Delete unused and deprecated and duplicated strings, sort strings in
english.lang
Some string IDs were changed so translations will be slightly worse than
before.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14198 a1c6a512-1295-4272-9138-f99709370657
then check if there's a previously generated mp3 file in it and if so, use
that instead of regenerating a new one. This should greately enhance
processing speed when many phrases are similar between targets and over time.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11835 a1c6a512-1295-4272-9138-f99709370657
