* prevent href exploit with stacks multiplier
used zipcuffs name change
initial commit of assistant antag option
typo and comment fixes in configuration.dm
Remove del-alls list of safes
Removes comment
Adding a CanPass() proc to girders. Projectiles can now sometimes pass through them, with varying percentage chance depending on girder subtypes.

Fixing reinforced and disloged girders being called "reinforced" or "disloged" upon examination instead of "disloged girder" and "reinforced girder".
Adding passtable and passgrille to mice for consistency, because chicks already have those flags.
Href exploit fixing : the bugfree edition
Manage Free Slots

Converts the nearly useless List Free Slots command to Manage Free Slots

From here you can painlessly add and remove job slots to your hearts content because the HoP is Dead/Shit/AFK/In Hiding

It can't be used before round start to make rounds with only clowns because of jobs.txt being applied at round start. Alas.
Removing the fourth argument (air_group) of CanPass() everywhere, because it isn't used anywhere.
Fixing one instance of "for(mob in viewers) show_message()" to "visible_message()"
Merge branch 'master' of https://github.com/tgstation/-tg-station into DisplacedGirderFix

Conflicts:
	code/modules/recycling/disposal.dm
derp
Renames the proc
Adds adminmoreinfo to Syndicate and Centcomm messages
Adding a changelog.
Fixing the blood decals being called "blood-stained blood" upon examination.
nonhumans can no longer write
Nuke href exploit fix, disallows non-numerical characters, sends a warning to admins and logs the attempt.
Fixes a runtime related to cameras being EMPed and finishing a spawn() while being in the qdel limbo.
changed ishuman to tool user check