Merge branch 'dz-allow-nested-group-routing' into 'master'

Add nested groups support to the routing

## What does this MR do?

It allows routing with `/` in namespace name 

## Why was this MR needed?

For nested groups feature(https://gitlab.com/gitlab-org/gitlab-ce/issues/2772). We need URI like `/group/subgroup/project` be routed correctly


## Does this MR meet the acceptance criteria?

- [x] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added
- ~~[Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
- ~~API support added~~
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

https://gitlab.com/gitlab-org/gitlab-ce/issues/2772

See merge request !7459

3 files changed, 9 insertions, 2 deletions

diff --git a/features/steps/project/labels.rb b/features/steps/project/labels.rb
index 118ffef4774..dbeb07c78db 100644
--- a/features/steps/project/labels.rb
+++ b/features/steps/project/labels.rb
@@ -2,9 +2,7 @@ class Spinach::Features::Labels < Spinach::FeatureSteps
   include SharedAuthentication
   include SharedIssuable
   include SharedProject
-  include SharedNote
   include SharedPaths
-  include SharedMarkdown
 
   step 'And I visit project "Shop" labels page' do
     visit namespace_project_labels_path(project.namespace, project)
diff --git a/features/steps/shared/diff_note.rb b/features/steps/shared/diff_note.rb
index 35b71599708..11fa85ed2fe 100644
--- a/features/steps/shared/diff_note.rb
+++ b/features/steps/shared/diff_note.rb
@@ -1,6 +1,11 @@
 module SharedDiffNote
   include Spinach::DSL
   include RepoHelpers
+  include WaitForAjax
+
+  after do
+    wait_for_ajax if javascript_test?
+  end
 
   step 'I cancel the diff comment' do
     page.within(diff_file_selector) do
diff --git a/features/steps/shared/note.rb b/features/steps/shared/note.rb
index 9dc1fc41b3b..1870f6bc0c3 100644
--- a/features/steps/shared/note.rb
+++ b/features/steps/shared/note.rb
@@ -2,6 +2,10 @@ module SharedNote
   include Spinach::DSL
   include WaitForAjax
 
+  after do
+    wait_for_ajax if javascript_test?
+  end
+
   step 'I delete a comment' do
     page.within('.main-notes-list') do
       find('.note').hover