Generates release notes for a milestone in a GitHub repo based on issues associated with the milestone.

• All closed issues/PR's for a milestone will be included.
• Issues/PR's with a label Type: Bug will be included in a Bugs section
• Issues/PR's not labeled as Type: Bug will be included in a Features/Improvements section
• The version is picked up from the build number (GFV) and that info is used to find the milestone.
• Release notes are generated as markdown.
• The c flag, along with a file path argument, f, will generate a file rather than a release in GitHub