Refactor: rename module and class names.

* Module: Graph -> Network
* Class: JsonBuilder -> Graph

app/controllers/graph_controller.rb

@@ -22,7 +22,7 @@ class GraphController < ProjectResourceController
       format.html
       format.json do
-        @graph = Graph::JsonBuilder.new(project, @ref, @commit)
+        @graph = Network::Graph.new(project, @ref, @commit)
       end
     end
   end

app/models/graph/commit.rb → app/models/network/commit.rb

 require "grit"
-module Graph
+module Network
   class Commit
     include ActionView::Helpers::TagHelper

app/models/graph/json_builder.rb → app/models/network/graph.rb

 require "grit"
-module Graph
-  class JsonBuilder
+module Network
+  class Graph
     attr_accessor :days, :commits, :ref_cache, :repo
     def self.max_count
@@ -19,7 +19,7 @@ module Graph
       @days = index_commits
     end
-  protected
+    protected
     # Get commits from repository
     #
@@ -30,8 +30,8 @@ module Graph
       # Decorate with app/models/commit.rb
       @commits.map! { |commit| Commit.new(commit) }
-      # Decorate with lib/gitlab/graph/commit.rb
-      @commits.map! { |commit| Graph::Commit.new(commit) }
+      # Decorate with app/model/network/commit.rb
+      @commits.map! { |commit| Network::Commit.new(commit) }
       # add refs to each commit
       @commits.each { |commit| commit.add_refs(ref_cache, repo) }

features/steps/project/project_network_graph.rb

@@ -8,8 +8,8 @@ class ProjectNetworkGraph < Spinach::FeatureSteps
   end
   When 'I visit project "Shop" network page' do
-    # Stub Graph::JsonBuilder max_size to speed up test (10 commits vs. 650)
-    Graph::JsonBuilder.stub(max_count: 10)
+    # Stub Graph max_size to speed up test (10 commits vs. 650)
+    Network::Graph.stub(max_count: 10)
     project = Project.find_by_name("Shop")
     visit project_graph_path(project, "master")
@@ -25,7 +25,7 @@ class ProjectNetworkGraph < Spinach::FeatureSteps
     end
   end
-  And 'I switch ref to "stable"' do
+  When 'I switch ref to "stable"' do
     page.select 'stable', :from => 'ref'
     sleep 2
   end
@@ -40,7 +40,7 @@ class ProjectNetworkGraph < Spinach::FeatureSteps
     end
   end
-  And 'I looking for a commit by SHA of "v2.1.0"' do
+  When 'I looking for a commit by SHA of "v2.1.0"' do
     within ".content .search" do
       fill_in 'q', :with => '98d6492'
       find('button').click

features/steps/shared/paths.rb

@@ -142,8 +142,8 @@ module SharedPaths
   end
   Given "I visit my project's network page" do
-    # Stub Graph::JsonBuilder max_size to speed up test (10 commits vs. 650)
-    Graph::JsonBuilder.stub(max_count: 10)
+    # Stub Graph max_size to speed up test (10 commits vs. 650)
+    Network::Graph.stub(max_count: 10)
     visit project_graph_path(@project, root_ref)
   end