Move az_map import into GUI as it doesn't belong in the module init

apps/modes_gui

@@ -30,6 +30,7 @@ import air_modes
 from air_modes.exceptions import *
 from air_modes.modes_rx_ui import Ui_MainWindow
 from air_modes.gui_model import *
+from air_modes.az_map import *
 import sqlite3
 import zmq
 

python/__init__.py

@@ -67,7 +67,6 @@ from kml import output_kml, output_jsonp
 from raw_server import raw_server
 from radio import modes_radio
 from exceptions import *
-from az_map import *
 from types import *
 from altitude import *
 from cpr import cpr_decoder