Merge branch 'dev'
Merge branch 'dev'
Merge pull request #436 from chenall/dev

add Global Option '--config' to specify config file insted of using _config.yml
Update comments. Fix #432
Remove language prefix of code blocks #438
Remove prefixing and trailing line breaks in code blocks #443
Fix dots escaped in the arguments of tag plugins #444
2.4.5 release
Merge branch 'dev'
Fix a bug in which categories were not paginated.
Merge pull request #446 from barograf/master

Fix a bug in which categories were not paginated.
Add "Clone in Koding" button to README.md
Fix #448
Merge branch 'master' into dev
bug fixed in page.js
when modify source_dir,the static file(e.g. imgs/sss.jpg) will generate error
Merge pull request #453 from chenall/fix-source-dir-bug

bug fixed in page.js
Merge remote branch 'hexo/dev' into dev