[ICATHALES-219] - Device initialization should not crash if trouble with driver

Correcting device's initialisation to allow error handling

src/ADLinkContinuousAO.cpp

@@ -26,9 +26,9 @@ ADLinkContinuousAO::~ADLinkContinuousAO (void)
 void ADLinkContinuousAO::handle_error (const asl::DAQException& de)
 {
   cout<<"error occured during acquisition"<<endl;
-  this->lock_data();
+  lock_data();
   err_ctr++;
-  this->unlock_data();
+  unlock_data();
   _ASL_TO_TANGO_EXCEPTION(de, df);
   ERROR_STREAM<<"error occured during acquisition"<<endl;
   ERROR_STREAM<<df<<endl;