Few changes to Group Milestone feature:

* Group attachments are not supported so I removed attach file link
* Added changelog item
* Add markdown hint to project milestone form
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG

@@ -43,6 +43,7 @@ v 8.2.0 (unreleased)
   - Relative links from a repositories README.md now link to the default branch
   - Fix trailing whitespace issue in merge request/issue title
   - Fix bug when milestone/label filter was empty for dashboard issues page
+  - Add ability to create milestone in group projects from single form
 
 v 8.1.4
   - Fix bug where manually merged branches in a MR would end up with an empty diff (Stan Hu)

app/assets/javascripts/dispatcher.js.coffee

@@ -28,6 +28,8 @@ class Dispatcher
       when 'projects:milestones:new', 'projects:milestones:edit'
         new ZenMode()
         new DropzoneInput($('.milestone-form'))
+      when 'groups:milestones:new'
+        new ZenMode()
       when 'projects:compare:show'
         new Diff()
       when 'projects:issues:new','projects:issues:edit'

app/views/groups/milestones/new.html.haml

@@ -21,7 +21,6 @@
         .col-sm-10
           = render layout: 'projects/md_preview', locals: { preview_class: "md-preview" } do
             = render 'projects/zen', f: f, attr: :description, classes: 'description form-control js-quick-submit'
-            = render 'projects/notes/hints'
             .clearfix
             .error-alert
       .form-group
@@ -43,7 +42,7 @@
 
 
 :javascript
-  $( ".datepicker" ).datepicker({
+  $(".datepicker").datepicker({
     dateFormat: "yy-mm-dd",
     onSelect: function(dateText, inst) { $("#milestone_due_date").val(dateText) }
   }).datepicker("setDate", $.datepicker.parseDate('yy-mm-dd', $('#milestone_due_date').val()));

app/views/projects/milestones/_form.html.haml

@@ -23,9 +23,7 @@
         .col-sm-10
           = render layout: 'projects/md_preview', locals: { preview_class: "md-preview" } do
             = render 'projects/zen', f: f, attr: :description, classes: 'description form-control js-quick-submit'
-            .hint
-              .pull-left Milestones are parsed with #{link_to "GitLab Flavored Markdown", help_page_path("markdown", "markdown"), target: '_blank'}.
-              .pull-left Attach files by dragging & dropping or #{link_to "selecting them", '#', class: 'markdown-selector' }.
+            = render 'projects/notes/hints'
           .clearfix
           .error-alert
     .col-md-6
@@ -45,7 +43,7 @@
 
 
 :javascript
-  $( ".datepicker" ).datepicker({
+  $(".datepicker").datepicker({
     dateFormat: "yy-mm-dd",
     onSelect: function(dateText, inst) { $("#milestone_due_date").val(dateText) }
   }).datepicker("setDate", $.datepicker.parseDate('yy-mm-dd', $('#milestone_due_date').val()));