Fixed bug where SSML voice change didn't remember an initially specified Klatt variant.
Removed some unused variables and redundant initializations.
Patch to fix a spike from Klatt function setzeroabc()
git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@275 d46cf337-b52f-0410-862d-fd96e6ae7743