Defined a Revision number macro in speak_lib.h for interface changes.
Changes to formant rate smoothing so that it's proportional to frequency.
Add phoneme translations for mbrola "it3" "it4" Italian voices.
Added rule in *_rules files for "word starts with capital letter".


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@49 d46cf337-b52f-0410-862d-fd96e6ae7743