Add new debug operator to search and fix some bugs

client/components/main/globalSearch.jade

@@ -42,6 +42,16 @@ template(name="globalSearch")
           autofocus dir="auto"
         )
         a.js-new-search.fa.fa-eraser
+      if debug.get.show
+        h1 Debug
+        if debug.get.showSelector
+          h2 Selector
+          pre
+            = sessionData.selector
+        if debug.get.showProjection
+          h2 Projection
+          pre
+            = sessionData.projection
       if searching.get
         +spinner
       else if hasResults.get