Bring up wlan0 when wifi is enabled

src/freedombone-wifi

     fi
 
     systemctl restart network-manager
+    ifdown wlan0
 }
 
 function hotspot_on {
     echo "    bridge_ports $WIFI_INTERFACE eth0" >> /etc/network/interfaces
 
     systemctl restart network-manager
+    ifup wlan0
     systemctl restart hostapd
 }
 
     wpa_passphrase "$ssid" "$passphrase" > $WIFI_CONFIG
 
     systemctl restart network-manager
+    ifup wlan0
 }
 
 function wifi_none {
     echo '}' >> $WIFI_CONFIG
 
     systemctl restart network-manager
+    ifup wlan0
 }
 
 function networks_from_file {
     done < $WIFI_NETWORKS_FILE
 
     systemctl restart network-manager
+    ifup wlan0
 }
 
 function create_networks_interactive {
     if [ -f $WIFI_NETWORKS_FILE ]; then
         rm $WIFI_NETWORKS_FILE
     fi
-    
+
     echo $'# Add wifi networks as follows:' > $WIFI_NETWORKS_FILE
     echo '#' >> $WIFI_NETWORKS_FILE
     echo $'# MySSID' >> $WIFI_NETWORKS_FILE
         if [ ${#WIFI_SSID} -lt 2 ]; then
             wifi_networks_done='yes'
             continue
-        fi  
+        fi
         if [ ${#WIFI_TYPE} -lt 2 ]; then
             wifi_networks_done='yes'
             continue
         fi
-        
+
         # update the wifi networks file
         echo '' >> $WIFI_NETWORKS_FILE
         echo "$WIFI_SSID" >> $WIFI_NETWORKS_FILE
         echo '# Include files from /etc/network/interfaces.d:' >> /etc/network/interfaces
         echo 'source-directory /etc/network/interfaces.d' >> /etc/network/interfaces
         systemctl restart network-manager
+        ifdown wlan0
     else
         networks_from_file
     fi
                 WIFI_DISABLE='yes'
             else
                 WIFI_DISABLE='no'
-            fi          
+            fi
             ;;
         *)
             # unknown option