Added basic template/support to writeups
Now you can access /writeups.html for a list of writeups and use http://URL/writeups/2014-11-24_pwn2win-70s/ for a specific writeup

TODO: Create a better CSS/Design for writeups.html and writeups posts
Merge branch 'master' of https://github.com/ctf-br/ctf-br.github.io into HEAD