test: route: add mail_handler test defined at r8162
Japanese translation updated by Go MAEDA (#9876)
route: code layout clean up sys route
test: route: add sys test
route: code layout clean up watchers route
test: route: add watchers test defined at r8162
test: route: add search test defined at r8162
Merged r8391 from trunk
pt-BR translation updated by Enderson Maia.
pt-BR translation updated by Enderson Maia (#9874)
Missing html_safe.
