Add saillinux's article
Add meta tag
Add profile
Edit code
Edit epilogue section
s/타스크/태스크/g
Edit prologue
Add cpan module section
Finalize saillinux's article
Merge branch 'feature/editor-2013-12-24' into develop
2013-12-24: publish saillinux's article
2013-12-24: fix typo, edit link & add link
2013-12-22: publish keedi's article
2013-12-24: fix author's twitter link
design: relocate barcode location as left not center