Change program code for espeak/libespeak to C, remove C++ features.

Language changes: af, ga, grc, hu, nl, sw, ta


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@364 d46cf337-b52f-0410-862d-fd96e6ae7743

Language updates: en, ga, hy, pt, sl, ta, vi


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@360 d46cf337-b52f-0410-862d-fd96e6ae7743

git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@329 d46cf337-b52f-0410-862d-fd96e6ae7743

Added language: ga (Irish).
Languages changes: en-us, eo, hu, pt, ta, vi


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@310 d46cf337-b52f-0410-862d-fd96e6ae7743