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

0.3.0

bugfix: release history page error when namespace has not release

fix filter precedence bug and js bug

refactor scripts to support changing logging file dir and server port

Support lpt and dev

support large file with namespace value length limit override

support json and yml config files

change package name extend to spi

refactor portal package structure

 improve delete namespace