Minor misc. fixes (#4729)

* [Simulator] Remove extraneous format value in microsTimer; Better way to delete SimulatorStartupDialog (in case no event loop starts).

* [Simulator] No helpers dependency for SimulatorStartupDialog.

* [simpgmspace] Rename micros timer function and make externally available.

* [Companion] Fix possible uninitialized value in TreeModel (compiler warning).

* [multi_arm] Fix minor compiler warning (MSVC: "unsafe mix of type 'uint8_t' and type 'bool' in operation").

* [lua] Fix compiler warning ("'data' may be used uninitialized in this function").

* [OpenTxSimulator] Fix analogs array range.

* [Simulator] Auto-start simulator when SimulatorMainWindow is first shown (vs. before it was shown).

* [Simulator] DebugOutput: prevent possible mutex deadlock on buffer overflow (force queued connection for Qt < 5.3).

* [Companion] Display calibration data for Horus joysticks (MOUSE1/MOUSE2)

radio/src/pulses/multi_arm.cpp

@@ -74,7 +74,7 @@ static void sendByteMulti(uint8_t b) //max 11 changes 0 10 10 10 10 P 1
   uint8_t len = BITLEN_MULTI; //max val: 10*20 < 256
   for (uint8_t i=0; i<=9; i++) { //8Bits + 1Parity + Stop=1
     bool nlev = b & 1; //lsb first
-    parity = parity ^ nlev;
+    parity = parity ^ (uint8_t)nlev;
     if (lev == nlev) {
       len += BITLEN_MULTI;
     }