Merge pull request #419 from forumbyr/master

bootstrap for domain,ipv4,ipv6
Merge pull request #420 from forumbyr/master

fix unit test problem
Merge pull request #421 from forumbyr/master

bootstrap for as number.
Merge pull request #422 from forumbyr/master

fix checkstyle problem.
Merge pull request #423 from forumbyr/master

remove case fold for entity fn.
fix checkstyle problem.
Merge pull request #424 from yqz1016/dev

fix checkstyle problem.
Merge remote-tracking branch 'cnnic/dev'
fix bug:as and ip bootstrap problem.