docker: use official image (master branch only)

Author: yomguy

Diff for: docker-compose.yml

@@ -51,8 +51,8 @@ search:
   image: elasticsearch:1.7
 
 app:
-  # image: parisson/telemeta:1.7
-  build: .
+  image: parisson/telemeta:1.7
+  #build: .
   volumes:
     - ./app:/srv/app
     - ./telemeta:/srv/lib/telemeta/telemeta
@@ -71,8 +71,8 @@ app:
     - "8000:8000"
 
 worker:
-  # image: parisson/telemeta:1.7
-  build: .
+  image: parisson/telemeta:1.7
+  #build: .
   volumes_from:
     - app
     - data