New scan module: Find Pinned Messages

• This release includes a new scan module - find_pinned_messages. This will search all channels the token has access to (including private ones) and dump pinned messages. These often contain sensitive information.
• Additional keyword added to the LINKS_QUERIES variable - SlackPirate will now also search for the word swagger in it's search for interesting links.

Time-stamped output folder and rate-limit improvements

• Output folder is now automatically timestamped to prevent older results from being overwritten. This means you can do things like compare/diff old and new results

• Improved the rate limit checks - shouldn't get errors relating to this anymore

SlackPirate - 0.6

• Added a new function to check whether the token supplied is an admin, owner or primary_owner token. If it is, print this information to stdout.

SlackPirate - 0.5

• Option flags added. Run ``SlackPirate.py --help` for a list of all available options and flags! Thanks @influenza @milangfx

SlackPirate - 0.4

• User Agent header is now randomised every time the tool is run.
• Fix for JSON output format so that it is now valid, RFC compliant JSON