Rename keyframe --> frame in PrcTracker

src/processor/processor_tracker.cpp

@@ -151,10 +151,10 @@ void ProcessorTracker::processCapture(CaptureBasePtr _incoming_ptr)
             WOLF_DEBUG( "PT ", getName(), " SECOND_TIME_WITHOUT_KEYFRAME" );
 
             // Make a NON KEY Frame to hold incoming capture
-            FrameBasePtr keyframe = std::make_shared<FrameBase>(incoming_ptr_->getTimeStamp(),
+            FrameBasePtr frame = std::make_shared<FrameBase>(incoming_ptr_->getTimeStamp(),
                                                                 getProblem()->getFrameStructure(),
                                                                 getProblem()->getState());
-            incoming_ptr_->link(keyframe);
+            incoming_ptr_->link(frame);
 
             // Process info
             // TrackerLandmark: If we have been given a map, all landmarks in the map are known. Process them.
@@ -170,7 +170,7 @@ void ProcessorTracker::processCapture(CaptureBasePtr _incoming_ptr)
             // Update pointers
             origin_ptr_ = last_ptr_;
             last_ptr_   = incoming_ptr_;
-            last_frame_ptr_ = keyframe;
+            last_frame_ptr_ = frame;
             incoming_ptr_ = nullptr;
 
             break;