v2.0.0

• #97: Replaced error whitelists and blacklists with an error handler. Both with_whitelisted_errors and with_blacklisted_errors are gone now. Use with_error_handler instead. Thanks to @zeisler for helping make this change!
• #96: Renamed "timeout" to "cool off time". Typically you can migrate by replacing with_timeout by with_cool_off_time. A big thanks to @zeisler for making this change!
• #94: Fixed a bug that only rescued subclasses of StandardError. Stoplights will now rescue all Exception subclasses. Thanks for fixing this bug, @zeisler!
• Officially dropped support for Ruby 2.0, which left its security maintenance phase on 24 February 2016.