Don't speak punctuation names faster at high speeds.

lang=ml, recognise "virama + U+200d" (zero-width joiner) to indicte 'chillu' characters.

Fix problem of punctuation character announcement repeated at the start of the next sentence after speaking is stopped.

Fixed crash due to large numbers of box-drawing characters in text input.

Fixed phoneme translation of 't' sounds for US-English voices.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@261 d46cf337-b52f-0410-862d-fd96e6ae7743

git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@231 d46cf337-b52f-0410-862d-fd96e6ae7743