Goonchat (#4744)

* bicon regex run

* Remove all \black

* Goonchat from /vg/ / Goon

Whoo!
Special thanks to @Tastyfish for the macro2html thing so all of our
horrible color macros keep working and don't fail horribly <3

* Fixes and changes n stuff

- Made ping sane again (the fuck PJ)
- Updated chat CSS
- Fixed like one problem with a color macro

* whoops

* Restore /vg/'s pingloop stuff (used to avoid fucking up is_afk)

* Strip problematic tags from tcomm scripts

- <audio>
- <video>
- <iframe>
- <script>

* Fix human examine icon

* Name hotkey elements

* Removed old stylesheet

code/modules/computer3/computers/security.dm

@@ -58,7 +58,7 @@
 			return
 
 		if (computer.z > 6)
-			to_chat(usr, "\red <b>Unable to establish a connection</b>: \black You're too far away from the station!")
+			to_chat(usr, "<span class='danger'>Unable to establish a connection</span>: You're too far away from the station!")
 			return
 		var/dat