Forward the messages in api response.

lib/api/milestones.rb

@@ -48,7 +48,7 @@ module API
         if milestone.valid?
           present milestone, with: Entities::Milestone
         else
-          not_found!
+          not_found!("Milestone #{milestone.errors.messages}")
         end
       end
@@ -72,7 +72,7 @@ module API
         if milestone.valid?
           present milestone, with: Entities::Milestone
         else
-          not_found!
+          not_found!("Milestone #{milestone.errors.messages}")
         end
       end
     end

lib/api/notes.rb

@@ -61,7 +61,7 @@ module API
           if @note.valid?
             present @note, with: Entities::Note
           else
-            not_found!
+            not_found!("Note #{@note.errors.messages}")
           end
         end

lib/api/project_hooks.rb

@@ -53,7 +53,7 @@ module API
           if @hook.errors[:url].present?
             error!("Invalid url given", 422)
           end
-          not_found!
+          not_found!("Project hook #{@hook.errors.messages}")
         end
       end
@@ -82,7 +82,7 @@ module API
           if @hook.errors[:url].present?
             error!("Invalid url given", 422)
           end
-          not_found!
+          not_found!("Project hook #{@hook.errors.messages}")
         end
       end

lib/api/project_members.rb

@@ -9,7 +9,7 @@ module API
           if errors[:access_level].any?
             error!(errors[:access_level], 422)
           end
-          not_found!
+          not_found!(errors)
         end
       end

lib/api/projects.rb

@@ -227,7 +227,7 @@ module API
             render_api_error!("Project already forked", 409)
           end
         else
-          not_found!
+          not_found!("Source Project")
         end
       end

lib/api/repositories.rb

@@ -133,7 +133,7 @@ module API
           env['api.format'] = :binary
           present data
         else
-          not_found!
+          not_found!('File')
         end
       end