Remove some subscription / reactivity / caching bugs and the unnecessary PatientLocations collection

Packages/lesiontracker/client/collections/LesionLocations.js

@@ -1,4 +1,5 @@
 LesionLocations = new Meteor.Collection(null);
+LesionLocations._debugName = 'LesionLocations';
 
 var organGroups = [
     'Abdominal/Chest Wall',

Packages/lesiontracker/client/collections/LocationResponses.js

@@ -1,4 +1,5 @@
 LocationResponses = new Meteor.Collection(null);
+LocationResponses._debugName = 'LocationResponses';
 
 LocationResponses.insert({
     text: 'Complete response',

Packages/lesiontracker/client/collections/PatientLocations.js

@@ -1 +0,0 @@
-PatientLocations = new Meteor.Collection(null);