Update homepage
Bump version to 2.5.1
Assert extend arguments
Tag plugin: add escape option #529
Merge branch 'feature/change-tag-api' into dev
Fix tests
Update dependencies
Replace Express with Connect
Merge branch 'hotfix/2.5.2' into dev

Conflicts:
	package.json
Remove json option of config console
Catch YFM parse error
Modify YFM pattern #535
Refactor util.yfm
Merge pull request #542 from hulufei/master

Support include css in stylus
Escape RegExp. Fix #539
Merge branch 'hotfix/post-creating' into dev
Merge branch 'hotfix/post-creating'
Fix Box.Pattern
Customize commit message #312
Fix is_post helper