Important Update:

- DeviceCore:
  - Added PollCycle variable (not used here)
- WatchdogCore:
  - Return "true" on in Process()
- SelectableCore:
  - Minor update (code compacted)
- Application/Function:
  - Added CApplication as friend of CFunction
  - Added param WaitToTerminate on Function
  - Application Run() only exists if all (WaitToTerminate) functions
    has terminated cleanly.

DeviceCore.cpp

@@ -30,6 +30,7 @@ extern CApplication * Application;
 CDeviceCore::CDeviceCore( const char * pName, const char * pType ) : CFunctionCore( pName, pType )
 {
     // Polling
+    PollCycle       = 0;
     PollStep        = 0;
     PollInterval    = 250;
     SetStartTime( &PollWait );