Upgrade elasticsearch gems

Gemfile.lock

@@ -129,17 +129,17 @@ GEM
     dotenv (1.0.2)
     dotenv-rails (1.0.2)
       dotenv (= 1.0.2)
-    elasticsearch (1.0.8)
-      elasticsearch-api (= 1.0.7)
-      elasticsearch-transport (= 1.0.7)
-    elasticsearch-api (1.0.7)
+    elasticsearch (5.0.5)
+      elasticsearch-api (= 5.0.5)
+      elasticsearch-transport (= 5.0.5)
+    elasticsearch-api (5.0.5)
       multi_json
-    elasticsearch-model (0.1.7)
+    elasticsearch-model (5.0.2)
       activesupport (> 3)
-      elasticsearch (> 0.4)
+      elasticsearch (~> 5)
       hashie
-    elasticsearch-rails (0.1.7)
-    elasticsearch-transport (1.0.7)
+    elasticsearch-rails (5.0.2)
+    elasticsearch-transport (5.0.5)
       faraday
       multi_json
     erubi (1.7.1)
@@ -154,7 +154,7 @@ GEM
     fabrication (2.11.3)
     faker (1.4.3)
       i18n (~> 0.5)
-    faraday (0.9.1)
+    faraday (0.15.2)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.23)
     formtastic (3.1.5)
@@ -166,7 +166,7 @@ GEM
     has_scope (0.6.0)
       actionpack (>= 3.2, < 5)
       activesupport (>= 3.2, < 5)
-    hashie (3.4.1)
+    hashie (3.5.7)
     hstore_translate (1.0.0)
       activerecord (>= 3.1.0)
     http-cookie (1.0.3)
@@ -220,7 +220,7 @@ GEM
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
-    multi_json (1.11.2)
+    multi_json (1.13.1)
     multipart-post (2.0.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)