Revert failed fix for #31

This reverts commit 69dc9b4c9aea58ebd95e2dbd0205701dfc4ce54e.
Only one instance of server can be started

This disallows the UDP multicasting that the original code enabled.

xoft deterrent, in PR #1151 you implied that this was unwanted behaviour
(but comments gone now as I force pushed - check emails?).

Revert at will if unsatisfactory :P