First pass at a Hanging Protocol implementation and editor (LT-131)

Packages/viewerbase/client/components/studyBrowser/studyBrowser/studyBrowser.html

@@ -2,7 +2,9 @@
     <div class="studyBrowser">
         <div class="scrollableStudyThumbnails">
         {{ #each studies }}
-            {{ >thumbnails }}
+            {{#each thumbnails}}
+                {{ >thumbnailEntry }}
+            {{/each}}
         {{ /each }}
         </div>
     </div>

Packages/viewerbase/client/components/studyBrowser/studyBrowser/studyBrowser.js

@@ -1,5 +1,18 @@
 Template.studyBrowser.helpers({
     studies : function() {
         return ViewerStudies.find({selected: true});
+    },
+    thumbnails: function() {
+        var study = this;
+        var stacks = createStacks(study);
+
+        var array = [];
+        stacks.forEach(function(stack, index) {
+            array.push({
+                thumbnailIndex: index,
+                stack: stack
+            });
+        });
+        return array;
     }
 });