server - change last references to speech-dispatcher config file directories to opentts
server - change last references to speech-dispatcher config file directories to opentts

If the sysconf directory was not set at build time, look in /etc/opentts, not
/etc/speech-dispatcher. We should also look in ~/.opentts for user config files,
and not in ~/.speech-dispatcher.

razr/opentts,razr/opentts,razr/opentts,razr/opentts