Add .keyword to aggregations

dashboard-reddit.html

@@ -3,7 +3,6 @@
 <link rel="import" href="../paper-material/paper-material.html">
 <link rel="import" href="../google-chart-elasticsearch/google-chart.html">
 <link rel="import" href="../paper-tabs/paper-tabs.html">
-<link rel="import" href="../reviews-table/reviews-table.html">
 <link rel="import" href="../number-chart/number-chart.html">
 <link rel="import" href="../comment-chart/comment-chart.html">
 
@@ -220,7 +219,6 @@
           this.client.search({
           // undocumented params are appended to the query string
           index: "reddit",
-          type: ["article","comment"],
           body: {
             size: 10,
             query: {
@@ -239,7 +237,7 @@
              },
              subreddit: {
                terms: {
-                 field: "subreddit",
+                 field: "subreddit.keyword",
                  order: {
                    _count: "desc"
                  } 
@@ -247,7 +245,7 @@
              },
 			 sentiment: {
 			   terms: {
-				 field: "sentiment",
+				 field: "sentiment.keyword",
 				 order: {
 				   _count: "desc"
 			     }
@@ -255,7 +253,7 @@
 		     },
  			emotion: {
  		      terms: {
- 			    field: "emotion",
+ 			    field: "emotion.keyword",
  				 order: {
  				   _count: "desc"
                  }