[Taranis] Asterisk BMP (thanks Martin!)

[Taranis] WDT timeout adjustable when dealing with long delays without pulses (thanks Mike for the trick!)
[Taranis] After USB is disconnected, the SD and the EEPROM are read inside the main, not inside the interrupt
[Taranis] Removed dead code about CPU temperature
[stock] Flash saving (thanks Mike for your emails!)

src/targets/taranis/usbd_usr.cpp

@@ -114,7 +114,7 @@ void USBD_USR_DeviceConnected (void)
   }
 
   eeCheck(true);
-  usb_connected = 1;
+  usbState = USB_CONNECTED;
 }
 
 
@@ -126,12 +126,7 @@ void USBD_USR_DeviceConnected (void)
 */
 void USBD_USR_DeviceDisconnected (void)
 {
-  usb_connected = 0;
-
-  eeReadAll();
-  eeLoadModel(g_eeGeneral.currModel);
-
-  sdInit();
+  usbState = USB_DISCONNECTING;
 }