Rename ci config module that holds nodes to Node

lib/gitlab/ci/config/entry/before_script.rb → lib/gitlab/ci/config/node/before_script.rb

 module Gitlab
   module Ci
     class Config
-      module Entry
-        class BeforeScript < BaseEntry
+      module Node
+        class BeforeScript < Entry
           def leaf?
             true
           end

lib/gitlab/ci/config/entry/base_entry.rb → lib/gitlab/ci/config/node/entry.rb

 module Gitlab
   module Ci
     class Config
-      module Entry
-        class BaseEntry
+      module Node
+        class Entry
           def initialize(hash, config, parent = nil)
             @hash = hash
             @config = config
             @parent = parent
           end
+
+          def allowed_keys
+            []
+          end
         end
       end
     end

lib/gitlab/ci/config/entry/global.rb → lib/gitlab/ci/config/node/global.rb

 module Gitlab
   module Ci
     class Config
-      module Entry
-        class Global < BaseEntry
-          def allowed_keys
-            []
-          end
+      module Node
+        class Global < Entry
         end
       end
     end

spec/lib/gitlab/ci/config/entry/before_script_spec.rb → spec/lib/gitlab/ci/config/node/before_script_spec.rb

 require 'spec_helper'
 
-describe Gitlab::Ci::Config::Entry::BeforeScript do
+describe Gitlab::Ci::Config::Node::BeforeScript do
   let(:entry) { described_class.new(hash, config) }
 
   describe '#leaf?' do

spec/lib/gitlab/ci/config/entry/global_spec.rb → spec/lib/gitlab/ci/config/node/global_spec.rb

 require 'spec_helper'
 
-describe Gitlab::Ci::Config::Entry::Global do
+describe Gitlab::Ci::Config::Node::Global do
 
 end