* use infinity in situations where its preferable to max()

Application/src/tracker/tracking/DatasetQuality.h

@@ -26,7 +26,7 @@ namespace track {
             
             long_t number_frames;
             
-            Single(idx_t id = std::numeric_limits<idx_t>::max())
+            Single(idx_t id = infinity<idx_t>())
                 : id(id), midline_len(0), midline_std(0), distance_travelled(0), grid_cells_visited(0), median_angle_var(0), number_frames(0)
             { }
             

Application/src/tracker/tracking/Individual.h

@@ -114,7 +114,7 @@ namespace track {
     
     class Identity {
     public:
-        static constexpr auto InvalidID = std::numeric_limits<uint32_t>::max();
+        static constexpr auto InvalidID = infinity<uint32_t>();
         
     protected:
         GETTER_SETTER(gui::Color, color)