Added attributes in voice file: voicing, breath, breathw.
Added "en-wisper" voice.
espeakedit, fixed crash when playing sounds using a voice file with a high pitch.
lang=it, use phoneme [u], not [U]
Added directory docs to svn.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@45 d46cf337-b52f-0410-862d-fd96e6ae7743