new threading finished- saves about 10mA for the high activity states

src/concurrency/InterruptableDelay.cpp

@@ -20,12 +20,12 @@ InterruptableDelay::~InterruptableDelay()
 bool InterruptableDelay::delay(uint32_t msec)
 {
     if (msec) {
-        DEBUG_MSG("delay %u ", msec);
+        // DEBUG_MSG("delay %u ", msec);
 
         // sem take will return false if we timed out (i.e. were not interrupted)
         bool r = xSemaphoreTake(semaphore, pdMS_TO_TICKS(msec));
 
-        DEBUG_MSG("interrupt=%d\n", r);
+        // DEBUG_MSG("interrupt=%d\n", r);
         return !r;
     } else {
         return true;

src/concurrency/OSThread.h

@@ -17,21 +17,12 @@ extern InterruptableDelay mainDelay;
 
 /**
  * @brief Base threading
+ * 
+ * This is a pseudo threading layer that is super easy to port, well suited to our slow network and very ram & power efficient.
  *
  * TODO FIXME @geeksville
  *
- * make bluetooth wake cpu immediately (because it puts a message in a queue?)
- * 
- * don't sleep at all if in POWER mode
- * 
- * wake for serial character received
- *
- * add concept of 'low priority' threads that are not used to block sleep?
- * 
- * make everything use osthread
- *
- * if we wake once because of a ble packet we might need to run loop multiple times before we can truely sleep
- *
+ * move more things into OSThreads
  * remove lock/lockguard
  * 
  * move typedQueue into concurrency