1.1 Release of HubCommander - Less SPAM edition!

Summary

This release of HubCommander has a number of improvements to help reduce the verbose SPAM in the channel.

Notable Features

• MAJOR: Thread support
• MAJOR: Ephemeral message support
• MAJOR: All GitHub and Travis CI related messages are now threaded
• Duo messages are ephemeral
• MAJOR: @hubcommander_command decorator will output help messages as ephemeral
• Bug fixes and documentation updates

Please review the contribution and development instructions on how to leverage the new features.

PRs

The following notable PRs were merged in:

• #53
• #60
• #61
• #63
• #64
• #65
• #67
• #68
• #69
• #70
• #72
• #74