Merge branch 'manual-todos-issuable-sidebar' into 'master'

Manually create todo for issuable

## What does this MR do?

Adds a button to the sidebar in issues & merge requests to allow users to manually create a todo item themselves.

## What are the relevant issue numbers?

Closes #15045 

## Screenshots (if relevant)

![Screen_Shot_2016-06-07_at_09.52.14](/uploads/00af70244c0589d19f241c3e85f3d63d/Screen_Shot_2016-06-07_at_09.52.14.png)

![Screen_Shot_2016-06-07_at_09.52.06](/uploads/e232b02208613a4a50cff4d1e6f119ff/Screen_Shot_2016-06-07_at_09.52.06.png)

![Screen_Shot_2016-06-07_at_09.51.14](/uploads/f1d36435d49ab882538ae2252bec8086/Screen_Shot_2016-06-07_at_09.51.14.png)

See merge request !4502

1 files changed, 2 insertions, 0 deletions

diff --git a/config/routes.rb b/config/routes.rb
index fe48ae95e29..fb634901712 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -795,6 +795,8 @@ Rails.application.routes.draw do
           end
         end
 
+        resources :todos, only: [:create, :update], constraints: { id: /\d+/ }
+
         resources :uploads, only: [:create] do
           collection do
             get ":secret/:filename", action: :show, as: :show, constraints: { filename: /[^\/]+/ }