Fix Mbrola translation for nl2 (phoneme [w]) and de4 (phoneme [?]).
Fix bug, lang=tr, letter capital-I-dot not recognized on Windows.
Only use "sonic" speed-up above 450wpm.
git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@258 d46cf337-b52f-0410-862d-fd96e6ae7743