+/*QUAKED item_key (0 .5 .8) (-16 -16 -24) (16 16 32) FLOATING
+A key entity.
+The itemkeys should contain one of the following key IDs:
+1 - GOLD key -
+2 - SILVER key
+4 - BRONZE key
+8 - RED keycard
+16 - BLUE keycard
+32 - GREEN keycard
+Custom keys:
+... - last key is 1<<23
+Keys with bigger Id than 32 don't have a default netname and model, if you use one of them, you MUST provide those.
+-----------KEYS------------
+colormod: color of the key (default: '.9 .9 .9').
+itemkeys: a key Id.
+message: message to print when player picks up this key.
+model: custom key model to use.
+netname: the display name of the key.
+noise: custom sound to play when player picks up the key.
+-------- SPAWNFLAGS --------
+FLOATING: the item will float in air, instead of aligning to the floor by falling
+---------NOTES----------
+This is the only correct way to put keys on the map!
+
+itemkeys MUST always have exactly one bit set.
+*/
+