Automate our branch strategy for hot fixing

[danfinlay]

Hot fixing needs to be done urgently when it's done.

Our current hot-fix release protocol:

• Once feature is identified, notify support team about issue so they can respond to it appropriately and create auto-replies and documentation.
• Create branch of master, since it reflects what is in production.
• Fix issue on branch.
• PR fix against master (this PR may include the patch version bump to reduce overhead)
• Once fix is verified by another team member, proceed to publishing process.
• After publishing, merge master into the active develop branch.

The branch & PR portions of this should be automated.