Enable Wifi on boot after using IoT Gateway Setup tool.

Start with a clean wpa_supplicant.conf when using IoT Gateway Setup tool.

bin/configure_gateway

@@ -470,8 +470,7 @@ def configureNetworkAP(changewifi):
     print noooo("the last line of configureNetworkAP")
 
 def setNetwork(network_conf, ssid):
-    if not os.path.isfile('/etc/wpa_supplicant.conf.original'):
-        subprocess.call("cp /etc/wpa_supplicant.conf /etc/wpa_supplicant.conf.original", shell=True)
+    subprocess.call("cp /usr/lib/node_modules/iot-gateway-setup/wpa_supplicant.tpl /etc/wpa_supplicant.conf", shell=True)
 
     wpa_supplicant = open('/etc/wpa_supplicant.conf','a') #Will not take care of duplicates at the moment.
     wpa_supplicant.write(network_conf)
@@ -685,6 +684,9 @@ def disableOneTimeSetup(persist):
     subprocess.call("/usr/rigado/scripts/led_control.sh green solid", shell=True)
     subprocess.call("/etc/init.d/iot-gateway-setup-server stop", shell=True)
 
+    if not 'auto wlan0' in open('/etc/network/interfaces').read():
+       subprocess.call("sed -i '/iface wlan/i auto wlan0' /etc/network/interfaces", shell=True)
+
 def toggleOneTimeSetup(persist):
     if showWiFiMode() == "Master":
         disableOneTimeSetup(persist)

wpa_supplicant.tpl

+ctrl_interface=/var/run/wpa_supplicant
+ctrl_interface_group=0
+update_config=1
+ 
+network={
+    key_mgmt=NONE
+}