Adding various internal Square fixes

* removing json from gemfile
* removing uneccesary string_to_bool in irc bot
* fixing regex for irc bot search command
* Adding SSL support (strict or relaxed) and utilizing squab client in
* irc bot
* Modifying glob in squab bot gemspec
* Updating Gemfile.lock for squab-client and squab-bot
* Removing string to bool section from squab client
* Adding auto-squab library that sends a squab message about the command that
  it's included in.
* Protecting against nil searches in squab server
* Tests for new nil search protection