Avoid building mod_java on sid for now

We're getting dependency errors that seem to be an upstream issue.
revert 04aac8c932ec853145e3efb60014d6f6e4fefafb it causes recursion loop in some systems
Add back build/config/uuid.m4 missed from reversion

This finishes reverting commit a89717f05b4b0d88c0257dbbba43635c5d7299c6.
mod_rayo: fix config to passthrough loopback dialstrings
remove WTF