Emote Fixes and "Me" Tweak (#4749)

- Tweaked "Me" verb to allow inclusion of the message when typing
directly into chat box.

- Fixed ghosts, with ghostsight on, seeing emotes twice when near the
emoter.

- Fixed *flip runtiming when used with no target and no grab.

- Fixed scream not displaying any message.

- Fixed double sanitizing in custom emotes.

- Fixed several cases where user wasn't getting passed into proc calls.

- Removed a couple unnecessary periods from dialogs.

code/modules/mob/say.dm

@@ -28,12 +28,21 @@
 	usr.say(message)
 
 
-/mob/verb/me_verb()
+/mob/verb/me_verb(message as text)
 	set name = "Me"
 	set category = "Emotes"
+	set desc = "(action) Enter a custom emote."
+
+	if(!message)
+		return
+
+	message = trim_strip_html_properly(message)
+
+	if(message == "")
+		return
 
 	if(emoteHandler)
-		return emoteHandler.runEmote("me")
+		return emoteHandler.runEmote("me", message)
 
 
 /mob/proc/say_dead(var/message)