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

bugfix: init user visited apps error when local storage stored app wh…

branch restful api add permission validate

fix cat log udpate gray release rules event

bugfix: branch modify master's item should ignore some field

bugfix: modify item dont need select cluster