Added description parameter support to Create and Update MR API endpoints (issue-110).

CHANGELOG

@@ -8,6 +8,7 @@ v 6.7.0
   - Show contribution guide link for new issue form (Jeroen van Baarsen)
   - Fix CI status for merge requests from fork 
   - Added option to remove issue assignee on project issue page and issue edit page (Jason Blanchard)
+  - Create and Update MR calls now support the description parameter (Greg Messner)
 
 v 6.6.2
   - Fix 500 error on branch/tag create or remove via UI

lib/api/merge_requests.rb

@@ -64,6 +64,7 @@ module API
       #   target_project           - The target project of the merge request defaults to the :id of the project
       #   assignee_id              - Assignee user ID
       #   title (required)         - Title of MR
+      #   description              - Description of MR
       #
       # Example:
       #   POST /projects/:id/merge_requests
@@ -72,7 +73,7 @@ module API
         set_current_user_for_thread do
           authorize! :write_merge_request, user_project
           required_attributes! [:source_branch, :target_branch, :title]
-          attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :target_project_id]
+          attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :target_project_id, :description]
           merge_request = user_project.merge_requests.new(attrs)
           merge_request.author = current_user
           merge_request.source_project = user_project
@@ -105,12 +106,13 @@ module API
       #   assignee_id                 - Assignee user ID
       #   title                       - Title of MR
       #   state_event                 - Status of MR. (close|reopen|merge)
+      #   description                 - Description of MR
       # Example:
       #   PUT /projects/:id/merge_request/:merge_request_id
       #
       put ":id/merge_request/:merge_request_id" do
         set_current_user_for_thread do
-          attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :state_event]
+          attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :state_event, :description]
           merge_request = user_project.merge_requests.find(params[:merge_request_id])
 
           authorize! :modify_merge_request, merge_request