Update Docker-API

Gemfile

@@ -7,7 +7,7 @@ gem 'carrierwave'
 gem 'coffee-rails'
 gem 'concurrent-ruby'
 gem 'concurrent-ruby-ext', platform: :ruby
-gem 'docker-api','~> 1.25.0', require: 'docker'
+gem 'docker-api', require: 'docker'
 gem 'factory_bot_rails'
 gem 'forgery'
 gem 'highline'

Gemfile.lock

@@ -115,9 +115,9 @@ GEM
     debug_inspector (0.0.3)
     diff-lcs (1.3)
     docile (1.1.5)
-    docker-api (1.25.0)
-      excon (>= 0.38.0)
-      json
+    docker-api (1.34.0)
+      excon (>= 0.47.0)
+      multi_json
     domain_name (0.5.20170404)
       unf (>= 0.0.5, < 1.0.0)
     erubi (1.7.0)
@@ -407,7 +407,7 @@ DEPENDENCIES
   concurrent-ruby-ext
   d3-rails
   database_cleaner
-  docker-api (~> 1.25.0)
+  docker-api
   factory_bot_rails
   faye-websocket
   forgery