upgrade mocha 0.14 and remove deprecation warning

<pre>
Mocha deprecation warning: Change `require 'mocha'` to `require 'mocha/setup'`.
</pre>

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11896 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/lib/redmine/scm/adapters/bazaar_adapter_test.rb

@@ -17,7 +17,7 @@
 
 require File.expand_path('../../../../../../test_helper', __FILE__)
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class BazaarAdapterTest < ActiveSupport::TestCase
     REPOSITORY_PATH = Rails.root.join('tmp/test/bazaar_repository').to_s

test/unit/lib/redmine/scm/adapters/cvs_adapter_test.rb

@@ -17,7 +17,7 @@
 
 require File.expand_path('../../../../../../test_helper', __FILE__)
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class CvsAdapterTest < ActiveSupport::TestCase
     REPOSITORY_PATH = Rails.root.join('tmp/test/cvs_repository').to_s

test/unit/lib/redmine/scm/adapters/darcs_adapter_test.rb

@@ -17,7 +17,7 @@
 
 require File.expand_path('../../../../../../test_helper', __FILE__)
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class DarcsAdapterTest < ActiveSupport::TestCase
     REPOSITORY_PATH = Rails.root.join('tmp/test/darcs_repository').to_s

test/unit/lib/redmine/scm/adapters/git_adapter_test.rb

@@ -17,7 +17,7 @@
 
 require File.expand_path('../../../../../../test_helper', __FILE__)
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class GitAdapterTest < ActiveSupport::TestCase
     REPOSITORY_PATH = Rails.root.join('tmp/test/git_repository').to_s

test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb

@@ -17,7 +17,7 @@
 
 require File.expand_path('../../../../../../test_helper', __FILE__)
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class MercurialAdapterTest < ActiveSupport::TestCase
     HELPERS_DIR        = Redmine::Scm::Adapters::MercurialAdapter::HELPERS_DIR

test/unit/lib/redmine/scm/adapters/subversion_adapter_test.rb

@@ -18,7 +18,7 @@
 require File.expand_path('../../../../../../test_helper', __FILE__)
 
 begin
-  require 'mocha'
+  require 'mocha/setup'
 
   class SubversionAdapterTest < ActiveSupport::TestCase