Remove pause before <say-as> if it's at the beginning of a sentence.
Added --split=<minutes>  command-line option. Splits output WAV file (at sentence boundaries).
Fix: espeakEVENT_SENTENCE events were missing.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@121 d46cf337-b52f-0410-862d-fd96e6ae7743