Make release name nicer when it is left blank.  Fixes #26.
Make final question easier to understand.

The wording of the question was confusing.  I believe a simple
"Continue?" will be easier to follow.
Merge pull request #27 from nubs/empty-release-name

Make release name nicer when it is left blank.  Fixes #26.
Allow the user to amend the release notes before submission. Fixes #13.

Often enough, the release notes generated need a little modification.
For example, perhaps they don't have enough information in just the pull
request title to make informative release notes of.

This will now pop up the user's preferred editor to allow them to edit
the release notes in a freeform manner.