UI handle public namespace not exist situation

link namespace show public namespace's item & refactor bean & improve…

fix jetty test version

update spring version

fix regex error

bugfix: email request expired time error



See merge request !37

Master



See merge request !36

add max-time option to avoid unexpected hang

version to 0.4.0

set email.supported.envs default value empty

bugfix:replaceAll escape content.

add default configuration profile

support send email when namespace released

Refactor trace related code to make CAT dependency optional