Reorder generated fields

[guillemj]

While stylistic, the rationale for these changes is as follows:

= debian/control

• Group Section and Priority together as these categorize the package, and place them after Source or Package fields, as this determines where in the archive these might end up.
• Place Maintainer/Uploader after these, as the responsible party for the package.
• Move Rules-Requires-Root before Build-Depends, as this determines how to drive the building process, and might impose additional dependencies, such as fakeroot or sudo.
• Move the Testsuite after the Build-Depends, as this is part of the runnable metadata.

= debian/copyright

• Move the Source field after Format, as both line up, refer to an URL, and it's the first reference to the upstream project.

These tend to be the changes I do on packages I've ITPed, as they jump on my face pretty quickly. :smile:

[creekorful]

Thanks for the changes and the well detailed rationale :D