Merge pull request #274 from hongoctrien/develop

Fix display sort comment
fix save block
Merge branch 'develop' of git@github.com:nukeviet/nukeviet.git into develop
module news: fix block newscenter
module news: change time wait after save content
module page: fix save content
module page: fix canonical
change config rewrite optional
update module contact
module comment: add config captcha
delete unused files
Merge pull request #41 from nukeviet/develop

Update code from nukeviet (05/05/2014)