TG: - Removed support for the ONBACK and ONBELT flags.

- Replaced them with a whole range of inventory slot flags. These now govern
whether an item can or can't be placed in a certain inventory slot. See setup.dm
for information on the flags. These flags only affect humans tho, as humans are
the only beings with an inventory to talk of.
- Standardized some gun code and some other pieces of code as I came accross
them. I hate indented variable definitions!

This commit should not bring any change whatsoever to the game from a player's
perspective.
Revision: r3659
Author: 	 baloh.matevz

code/game/objects/devices/PDA/PDA.dm

@@ -8,7 +8,8 @@
 	icon_state = "pda"
 	item_state = "electronic"
 	w_class = 1.0
-	flags = FPRINT | TABLEPASS | ONBELT
+	flags = FPRINT | TABLEPASS
+	slot_flags = SLOT_ID | SLOT_BELT
 
 	//Main variables
 	var/owner = null