April sync (#360)

* Maps and things no code/icons

* helpers defines globalvars

* Onclick world.dm orphaned_procs

* subsystems

Round vote and shuttle autocall done here too

* datums

* Game folder

* Admin - chatter modules

* clothing - mining

* modular computers - zambies

* client

* mob level 1

* mob stage 2 + simple_animal

* silicons n brains

* mob stage 3 + Alien/Monkey

* human mobs

* icons updated

* some sounds

* emitter y u no commit

* update tgstation.dme

* compile fixes

* travis fixes

Also removes Fast digest mode, because reasons.

* tweaks for travis Mentors are broke again

Also fixes Sizeray guns

* oxygen loss fix for vore code.

* removes unused code

* some code updates

* bulk fixes

* further fixes

* outside things

* whoops.

* Maint bar ported

* GLOBs.

code/datums/action.dm

@@ -333,6 +333,10 @@
 /datum/action/item_action/hands_free/shift_nerves
 	name = "Shift Nerves"
 
+/datum/action/item_action/explosive_implant
+	check_flags = 0
+	name = "Activate Explosive Implant"
+
 /datum/action/item_action/toggle_research_scanner
 	name = "Toggle Research Scanner"
 	button_icon_state = "scan_mode"
@@ -467,4 +471,17 @@
 /datum/action/item_action/bhop
 	name = "Activate Jump Boots"
 	desc = "Activates the jump boot's internal propulsion system, allowing the user to dash over 4-wide gaps."
-	button_icon_state = "jetboot"
+	button_icon_state = "jetboot"
+
+/datum/action/language_menu
+	name = "Language Menu"
+	desc = "Open the language menu to review your languages, their keys, and select your default language."
+	button_icon_state = "language_menu"
+	check_flags = 0
+
+/datum/action/language_menu/Trigger()
+	if(!..())
+		return FALSE
+	if(isliving(owner))
+		var/mob/living/L = owner
+		L.open_language_menu(usr)