Custom query integration

[Grayside]

One of my primary use cases for this plugin is to manage Version information as part of the milestone, and not endlessly build custom queries and reports trying to chase down the release schedule.

However, without custom query integration it is impossible for me to build an easy query that captures:

• All the issues in milestones attached to a given Version.
• All the individual issues that will go out at the same time.

I would love it if there were, say, an "extendedversion" query option that pulled in tickets from all milestones associated with a version.