Don't use layout when requested from xhr
Add join table migration generator to usage help.
Merge pull request #8765 from mmb/join_table_usage

Add join table migration generator to usage help. [ci skip]
Merge pull request #8737 from tricknotes/info-page-style

Fix info page style [ci skip]
split formatting concerns from RoutesInspector
display mountable engine routes on RoutingError.
Merge pull request #8658 from senny/8649_unify_routes_output_for_console_and_web

Unify routes output for console and web, ensure engine routes are shown in html routes table.

Closes #8649.
Action Pack changelog improvements [ci skip]
Change Rails Info controller to use the new table routes formatter
Redirect using action hash instead of hardcoding full route
Move style to head to make routes page valid html5
Close container div tag in routing error page
Remove warning, remove not used variable, and make methods private

Warning: "shadowing outer local variable - routes".