Fixed broken links in WP representer

lib/api/v3/users/user_representer.rb

@@ -57,7 +57,7 @@ module API
 
         link :removeWatcher do
           {
-            href: "#{root_path}/api/v3/work_packages/#{@work_package.id}/watchers/#{represented.model.id}",
+            href: "#{root_path}api/v3/work_packages/#{@work_package.id}/watchers/#{represented.model.id}",
             method: :delete,
             title: 'Remove watcher'
           } if @work_package && current_user_allowed_to(:delete_work_package_watchers, @work_package)

lib/api/v3/work_packages/work_package_representer.rb

@@ -58,7 +58,7 @@ module API
 
         link :update do
           {
-            href: "/api/v3/work_packages/#{represented.model.id}",
+            href: "#{root_path}api/v3/work_packages/#{represented.model.id}",
             method: :patch,
             title: "Update #{represented.subject}"
           } if current_user_allowed_to(:edit_work_packages, represented.model)
@@ -130,7 +130,7 @@ module API
 
         link :addRelation do
           {
-              href: "#{root_path}/api/v3/work_packages/#{represented.model.id}/relations",
+              href: "#{root_path}api/v3/work_packages/#{represented.model.id}/relations",
               method: :post,
               title: 'Add relation'
           } if current_user_allowed_to(:manage_work_package_relations, represented.model)
@@ -146,14 +146,14 @@ module API
 
         link :parent do
           {
-              href: "#{root_path}/api/v3/work_packages/#{represented.model.parent.id}",
+              href: "#{root_path}api/v3/work_packages/#{represented.model.parent.id}",
               title:  represented.model.parent.subject
           } unless represented.model.parent.nil? || !represented.model.parent.visible?
         end
 
         links :children do
           visible_children.map do |child|
-            { href: "#{root_path}/api/v3/work_packages/#{child.id}", title: child.subject }
+            { href: "#{root_path}api/v3/work_packages/#{child.id}", title: child.subject }
           end unless visible_children.empty?
         end