Generate a CTF directory skeleton

Use genctf.py to generate a CTF write-up skeleton.

• Create an empty directory for the CTF, ending with the current year, e.g. example-ctf-2015/
• Create an empty directory in this new CTF directory for each task category, e.g. mkdir crypto web misc trivia
• Create an empty directory for each task in their respective category folder, e.g. mkdir crypto/{rsalot, rsanne}
• Download all CTF files during the CTF and save the description, points, original task name, solves and task category for each file in a file named info, e.g. crypto/rsalot/info and crypto/rsanne/info
• Generate a README.md for each info file in the CTF directory using the genctf.py tool, e.g. python genctf.py example-ctf-2015/ info 'Example CTF'
• Remove all the info files (make a backup of your CTF directory just in case) using find example-ctf-2015 -name info -delete
• Tell git to ignore all files that are bigger than 10MBytes with cd example-ctf-2015; find . -size +10M >> .gitignore
• Edit each README.md to fill in missing information (e.g. Authors, references and solves)
• Move the CTF directory to the write-ups-$YEAR repo, making sure that it does not already exist, and make a pull request

Use getscores.py to generate the scoreboard for a CTF by providing a ctftime link.

Use checkreadme.py to update the root README.md of a given CTF directory.