Work on refactoring measurements out of Lesion Tracker package

- Removed AssociatedStudies Collection
- Measurement API is generated from configuration files
- Data exchange methods are defined in configuration

LesionTracker/client/lesionTrackerHangingProtocol.js

@@ -164,20 +164,4 @@ Meteor.call('removeHangingProtocolByID', HP.lesionTrackerFollowupProtocol.id, fu
     HangingProtocols.insert(HP.lesionTrackerFollowupProtocol);
 });
 
-Meteor.startup(function() {
-    getTimepointType = function(study) {
-        var timepoint = Timepoints.findOne({
-            studyInstanceUids: {
-                $in: [study.studyInstanceUid]
-            }
-        });
-
-        if (!timepoint) {
-            return;
-        }
-
-        return timepoint.timepointType;
-    };
-
-    HP.addCustomAttribute('timepointType', 'Timepoint Type', getTimepointType);
-});
+HangingProtocols.insert(HP.defaultProtocol);