mumble: Small Fixups and add support for disabling speechd

This patch adds a collection of changes to clean up the mumble
expression as well as add support for disabling the external speech
dispatcher from being compiled in.
db5: Add package
mcpp: Add package
zeroc-ice: Add package
murmur: Add ice support and small fixes

This patch adds optional ICE support to murmur which is enabled by
default. Additionally, it cleans up some of the expression similar to
the fixes added the mumble.
Merge pull request #1638 from wkennington/cache.mumble

Add more configurable options to mumble