Added new phonemes [s.] and [z.] (as common phonemes), use in Lang=ru, Lang=sv, Lang=hi
Remake WAV files for [s;] and [z;] phonemes.
espeak_Terminate(), set pointers to NULL after free().
espeak_Initialize(), returns EE_INTERNAL_ERROR (-1) if fails to allocate memory.
Change to the default tone setting (array: tone_points in voices.cpp).


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@5 d46cf337-b52f-0410-862d-fd96e6ae7743

Don't read all the voice files on start, wait until they are needed.
Added 'W' code to _rules files to mean: further letters follow while spelling a word.
Lang=fr replace [r] with [R],  shorten [R] slightly


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@4 d46cf337-b52f-0410-862d-fd96e6ae7743