Merge pull request #62 from Adam-/master+svsmoded•••Services coders: you can now set "SVSMODE Nick +d" to set the 'deaf' user mode. Note that "SVSMODE Nick +d svsidhere" also still works.
This should be a harmless change, unless some services packages are accidentally trying to set emtpy svsids like "SVSMODE Nick +d "... if you do, then the target nick will be deaf now..