added elasticsearch gem and index method

front-api/Gemfile.lock

@@ -26,6 +26,16 @@ GEM
     builder (3.2.2)
     celluloid (0.16.0)
       timers (~> 4.0.0)
+    elasticsearch (1.0.8)
+      elasticsearch-api (= 1.0.7)
+      elasticsearch-transport (= 1.0.7)
+    elasticsearch-api (1.0.7)
+      multi_json
+    elasticsearch-transport (1.0.7)
+      faraday
+      multi_json
+    faraday (0.9.1)
+      multipart-post (>= 1.2, < 3)
     ffi (1.9.6)
     ffi (1.9.6-java)
     hitimes (1.2.2)
@@ -41,6 +51,7 @@ GEM
       rb-inotify (>= 0.9)
     minitest (5.5.0)
     multi_json (1.10.1)
+    multipart-post (2.0.0)
     pg (0.17.1)
     puma (2.10.2)
       rack (>= 1.1, < 2.0)
@@ -86,6 +97,7 @@ DEPENDENCIES
   activerecord
   activerecord-jdbcpostgresql-adapter
   bcrypt (~> 3.1.7)
+  elasticsearch
   jruby-openssl
   json
   pg