Keep the original voice variant across SSML xml:lang changes.
Use the original language sub-type (eg. en-sc) when SSML xml:lang changes to a compatible language.
SSML <emphasis>, increase volume for "strong" and "x-strong".
Fix bug where </emphasis> was ignored at end of clause.
Fix: $dot attribute was ignored for multi-word entries in *_list files.
git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@269 d46cf337-b52f-0410-862d-fd96e6ae7743
jonsd