Avoid render edit_form in each notes.

Use RJS to render edit note feature.

Before:

```
Rendered projects/notes/_note.html.haml (27.9ms)
Rendered projects/_zen.html.haml (0.3ms)
Rendered projects/notes/_hints.html.haml (0.7ms)
Rendered projects/_md_preview.html.haml (3.9ms)
Rendered projects/notes/_edit_form.html.haml (6.9ms)
Rendered projects/notes/_note.html.haml (17.7ms)
Rendered projects/_zen.html.haml (0.3ms)
Rendered projects/notes/_hints.html.haml (0.6ms)
Rendered projects/_md_preview.html.haml (3.4ms)
Rendered projects/notes/_edit_form.html.haml (7.0ms)
```

After:

```
Rendered projects/notes/_note.html.haml (13.8ms)
Rendered projects/notes/_note.html.haml (7.1ms)
Rendered projects/notes/_note.html.haml (9.5ms)
Rendered projects/notes/_note.html.haml (8.5ms)
```

This change reduce at least 6ms * N ('N' - number of notes).

1 files changed, 1 insertions, 1 deletions

diff --git a/features/steps/project/issues/issues.rb b/features/steps/project/issues/issues.rb
index af2da41badb..be134b9c2bb 100644
--- a/features/steps/project/issues/issues.rb
+++ b/features/steps/project/issues/issues.rb
@@ -219,7 +219,7 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   end
 
   step 'The code block should be unchanged' do
-    expect(page).to have_content("```\nCommand [1]: /usr/local/bin/git , see [text](doc/text)\n```")
+    expect(page).to have_content("Command [1]: /usr/local/bin/git , see [text](doc/text)")
   end
 
   step 'project \'Shop\' has issue \'Bugfix1\' with description: \'Description for issue1\'' do