Small tweaks and fixes

Mice and other fags can no longer steal IDs from ID computer
Fixed dice icons being broken if their name got changed (with hand
labeller or otherwise)
Borgs can now drink stuff from containers (useful for service borgs - so
they can easily remove shit from their shaker)
Service borgs now have d6 and d20 (named probability cube and
probability icosahedron)
Oops
Standard borg module made less a bit less pathetic

Standard borgs now get a megaphone and a tape recorder to play with
Also fixed being able to use the sound synthesizer on one person without
cooldown
Standard borgs can now use megaphones

Previously they couldn't
Boo messages for silicons

spoky
oops 2
Changelog?
Merge pull request #2368 from Unfit/synth_2

Small tweaks and fixes