Refactor: Switched from htmlunit (gargoylesoftware) to mechanize 

(gistlabs): Decoupled Message Queueing, Extracted AbstractBot class, modified web-interactions to fit to mechanize, improved JSON Parsing, Corrected EventURL, Renamed StackexchangeChat to MessageRelay, Moved bot into subPackage, refined .gitignore for better ignoring of BotConfig, refined "fkey" storage

Keeping 2 JavaBot classes as proceeding to make changes  would override changes performed by @Vincentyification