Return repository_id for env vars

Gemfile.lock

@@ -45,7 +45,7 @@ GIT
 
 GIT
   remote: git://github.com/travis-ci/travis-core.git
-  revision: 0b46e3bc59c18be16a292f1d3b5cbe3f4e8bb7d3
+  revision: ad2942bfce79a439743422290d4eb859d68a4424
   specs:
     travis-core (0.0.1)
       actionmailer (~> 3.2.19)

lib/travis/api/v2/http/env_var.rb

@@ -3,7 +3,7 @@ module Travis
     module V2
       module Http
         class EnvVar < Travis::Api::Serializer
-          attributes :id, :name, :value, :public
+          attributes :id, :name, :value, :public, :repository_id
 
           def value
             if object.public?

spec/integration/v2/settings/env_vars_spec.rb

@@ -22,6 +22,7 @@ describe Travis::Api::App::SettingsEndpoint do
         json['env_var']['name'].should == 'FOO'
         json['env_var']['id'].should == record.id
         json['env_var']['public'].should be_false
+        json['env_var']['repository_id'].should == repo.id
         json['env_var'].should_not have_key('value')
       end
 
@@ -45,6 +46,7 @@ describe Travis::Api::App::SettingsEndpoint do
         key = json['env_vars'].first
         key['name'].should == 'FOO'
         key['id'].should == record.id
+        key['repository_id'].should == repo.id
         key['public'].should be_false
         key.should_not have_key('value')
       end