Hack.lu CTF 2014: clarify alternate “HotCows Dating” solution

Thanks to @qll for looking into this.

Closes #185.
Hack.lu CTF 2014: link to “Callgate” write-up by tasteless

Closes #204.
Hack.lu CTF 2014: add “At Gunpoint” write-up by bernardomr

Closes #203.
Hack.lu CTF 2014: add another way to solve “Gunslinger Joe’s private Terminal”

Closes #206.
Hack.lu CTF 2014: add exploit and link to @H4rryp0tt3r’s work

Closes #199.
Hack.lu CTF 2014: add yet another way to solve “Gunslinger Joe’s private Terminal”

Closes #202.
tinyCTF 2014: add simple solution for “Not exactly Alcatraz”

Why use `__builtins__` when `file` is available?

Closes #201.
Hack.lu CTF 2014: link to “Guess the flag” write-up

Closes #200.
Hack.lu CTF 2014: add source files for “HotCows Dating”

Closes #192.
Hack.lu CTF 2014: link to source code in “HotCows Dating” write-up
Hack.lu CTF 2014: tweak and document Gunslinger #3
Hack.lu CTF 2014: fix minor typo
Hack.lu CTF 2014: add link to @jhector’s “breakout” write-up

Closes #209.
Hack.lu CTF 2014: link to @jhector’s “Big Jim’s Map” write-up

Closes #208.
Hack.lu CTF 2014: link to “Dalton’s Corporate Security Safe for Business” write-up

Closes #207.
Hack.lu CTF 2014: link to “At Gunpoint” write-up
[tinyctf] Added WTC, RSA, BBQ write-up
D-CTF 2014: add writeup for exploitation 400

Closes #212
Hack.lu CTF 2014: link to write-ups

Closes #213
ECTF 2014: add challenges