Rename throttle and rudder to z and rz

mappings/default.conf

@@ -1,25 +1,22 @@
 abs_x = 0
 abs_y = 1
+abs_z = 2
 abs_rx = 3
 abs_ry = 4
+abs_rz = 5
 abs_deadzone = 0
 
 abs_dpad_y = 16
 abs_dpad_x = 17
 
-abs_throttle = 6
-abs_rudder = 7
-btn_throttle = 312
-btn_rudder = 313
-
 reverse_x = false
 reverse_y = false
 reverse_rx = false
 reverse_ry = false
 reverse_dpad_y = false
 reverse_dpad_x = false
-reverse_throttle = false
-reverse_rudder = false
+reverse_z = false
+reverse_rz = false
 
 btn_south = 304
 btn_east = 305
@@ -33,6 +30,8 @@ btn_thumbl = 317
 btn_thumbr = 318
 btn_tl = 310
 btn_tr = 311
+btn_tl2 = 312
+btn_tr2 = 313
 	
 btn_dpad_up = 544
 btn_dpad_down = 545