Fix some words in English hangman dictionary

I'm still not sure all words are good English but fixed the most obvious
non-English words.
Updated App Icon

Sorry, the icon still wasn't what I imagined so I decided to do it
myself ^^
Also, updated .gitignore to ignore .suo file from my VS 2010
Rewrite Scripting bot respecting the Bot API + Code Optimization

Do NOT put thread sleeps in bots. NEVER. Initialize() and Update() are
called in the main thread!
Also, a delay should be respected between each chat/command sendind to
avoid being kicked.
Putting Thread.Sleep() in bots may cause the client to be out of sync
with the server or make it lose connection so again do not use them :)
Reverted password length change (privacy)

for privacy reasons, it's better not to specify the length of the
password in the console ;)