Only set actionpack as dependency for diaspora_federation-rails

Gemfile.lock

@@ -9,8 +9,8 @@ PATH
       valid (~> 1.0)
     diaspora_federation-json_schema (0.1.8)
     diaspora_federation-rails (0.1.8)
+      actionpack (>= 4.2, < 6)
       diaspora_federation (= 0.1.8)
-      rails (>= 4.2, < 6)
     diaspora_federation-test (0.1.8)
       diaspora_federation (= 0.1.8)
       fabrication (~> 2.16.0)
@@ -19,16 +19,6 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.0.2)
-      actionpack (= 5.0.2)
-      nio4r (>= 1.2, < 3.0)
-      websocket-driver (~> 0.6.1)
-    actionmailer (5.0.2)
-      actionpack (= 5.0.2)
-      actionview (= 5.0.2)
-      activejob (= 5.0.2)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
     actionpack (5.0.2)
       actionview (= 5.0.2)
       activesupport (= 5.0.2)
@@ -42,15 +32,6 @@ GEM
       erubis (~> 2.7.0)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.0.2)
-      activesupport (= 5.0.2)
-      globalid (>= 0.3.6)
-    activemodel (5.0.2)
-      activesupport (= 5.0.2)
-    activerecord (5.0.2)
-      activemodel (= 5.0.2)
-      activesupport (= 5.0.2)
-      arel (~> 7.0)
     activesupport (5.0.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
@@ -58,7 +39,6 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
-    arel (7.1.4)
     ast (2.3.0)
     builder (3.2.3)
     byebug (9.0.6)
@@ -86,8 +66,6 @@ GEM
     gitlab (3.7.0)
       httparty (~> 0.13.0)
       terminal-table
-    globalid (0.3.7)
-      activesupport (>= 4.1.0)
     guard (2.14.1)
       formatador (>= 0.2.4)
       listen (>= 2.7, < 4.0)
@@ -125,18 +103,12 @@ GEM
     lumberjack (1.0.11)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
-    mail (2.6.4)
-      mime-types (>= 1.16, < 4)
     method_source (0.8.2)
-    mime-types (3.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
     mini_portile2 (2.1.0)
     minitest (5.10.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     nenv (0.3.0)
-    nio4r (2.0.0)
     nokogiri (1.7.1)
       mini_portile2 (~> 2.1.0)
     notiffany (0.1.1)
@@ -170,18 +142,6 @@ GEM
     rack (2.0.1)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (5.0.2)
-      actioncable (= 5.0.2)
-      actionmailer (= 5.0.2)
-      actionpack (= 5.0.2)
-      actionview (= 5.0.2)
-      activejob (= 5.0.2)
-      activemodel (= 5.0.2)
-      activerecord (= 5.0.2)
-      activesupport (= 5.0.2)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.2)
-      sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.2)
       activesupport (>= 4.2.0, < 6.0)
       nokogiri (~> 1.6)
@@ -251,13 +211,6 @@ GEM
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)
-    sprockets (3.7.1)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    sprockets-rails (3.2.0)
-      actionpack (>= 4.0)
-      activesupport (>= 4.0)
-      sprockets (>= 3.0.0)
     systemu (2.6.5)
     terminal-table (1.7.3)
       unicode-display_width (~> 1.1.1)
@@ -275,9 +228,6 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
-    websocket-driver (0.6.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
     yard (0.9.8)
 
 PLATFORMS

diaspora_federation-rails.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = "~> 2.1"
 
-  s.add_dependency "rails", ">= 4.2", "< 6"
+  s.add_dependency "actionpack", ">= 4.2", "< 6"
 
   s.add_dependency "diaspora_federation", DiasporaFederation::VERSION
 end