Remove the jobs additional element

hmm the flipside of this is to add more supported documentation points. e.g:

<sequence>
  <doc>First step is to restart all of the DB servers:</doc>
  <command><doc>We use "service x start" instead of blah because of...</doc><exec>...</exec></command>
  <doc>Next we call the X job to do its thing:</doc>
  <command><jobref .../></command>
...
</sequence>

Giving inline documentation, which is more useful than comment text in the XML.

In this style, the <additional> section is not redundant, but a place for extended general documentation info.

In line documentation is helpful...but it's a nice to have.

Cut it, and lets see if the users come back with the requirement.