intonation: changed comma intonation for intonation type 2.
intonation: adjusted exclamation (make the nuclear syllable emphasized).
intonation: split intonation table into body and nucleus parts.
lang-zh: only length tones 2,3 at end of sentence.
git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@137 d46cf337-b52f-0410-862d-fd96e6ae7743
jonsd