disable auto connect at boot

otherwise we have trouble connecting to ap when it tries to reconnect to non existing network
esp8266/Arduino#1624

Author: st0ff3r

modules/wifi.c

@@ -359,7 +359,7 @@ void ICACHE_FLASH_ATTR wifi_connect(uint8_t* ssid, uint8_t* pass, WifiCallback c
 
 	INFO("WIFI_INIT\r\n");
 	wifi_set_opmode(STATIONAP_MODE);
-	wifi_station_set_auto_connect(false);
+	wifi_station_set_auto_connect(false);	// according to docs this can only be done from user_init() or we have to reboot after calling
 	wifi_cb = cb;
 	config_ssid = ssid;
 	config_pass = pass;
@@ -375,7 +375,7 @@ void ICACHE_FLASH_ATTR wifi_connect(uint8_t* ssid, uint8_t* pass, WifiCallback c
 	// start wifi scan timer
 	wifi_start_scan();
 
-	wifi_station_set_auto_connect(true);
+	wifi_station_set_auto_connect(true);	// according to docs this can only be done from user_init() or we have to reboot after calling
 	wifi_set_event_handler_cb(wifi_handle_event_cb);
 	wifi_station_connect();
 

user/user_main.c

@@ -898,6 +898,7 @@ ICACHE_FLASH_ATTR void user_init(void) {
 
 	// make sure the device is in AP and STA combined mode; otherwise we cant scan
 	wifi_set_opmode_current(STATIONAP_MODE);
+	wifi_station_set_auto_connect(false);
 	// do everything else in system_init_done
 	system_init_done_cb(&system_init_done);
 }