Updating server dependancies (#6712)

glide.yaml

@@ -17,9 +17,9 @@ import:
   version: v1.3
 - package: github.com/golang/freetype
 - package: github.com/gorilla/handlers
-  version: v1.2
+  version: v1.2.1
 - package: github.com/gorilla/mux
-  version: v1.3.0
+  version: v1.4.0
 - package: github.com/gorilla/websocket
   version: v1.1.0
 - package: github.com/lib/pq
@@ -80,5 +80,6 @@ import:
 - package: github.com/prometheus/procfs
 - package: github.com/cpanato/html2text
 - package: gopkg.in/olivere/elastic.v5
-  version: v5.0.38
+  version: v5.0.41
 - package: github.com/mattermost/gorp
+  version: cab337059e349c91a4b917c9be50708813619543