Resolve "Emplace API inconsistent with ProcessorTrackerFeature/Landmark functions"

Closes #191 (closed)

include/core/processor/processor_tracker_feature.h

@@ -188,7 +188,7 @@ class ProcessorTrackerFeature : public ProcessorTracker
          */
         virtual FactorBasePtr emplaceFactor(FeatureBasePtr _feature_ptr, FeatureBasePtr _feature_other_ptr) = 0;
 
-        /** \brief Establish factors between features in Captures \b last and \b origin
+        /** \brief Emplaces a new factor for each correspondence between a feature in Capture \b last and a feature in Capture \b origin
          */
         virtual void establishFactors();
 };