Removed comment, logged in GitHub
Added a.common to e.relations
Removed @scriptcode from <relation>

Superceded by @script in a.common.
Renamed @type to @linktype in am.simplelink

Per previous decisions there should be no attributes called "type".
Rather than xlinktype, I suggest we go back to "linktype", which was
used in EAD 1.0.
Changed relationentry to zeroOrMore

To match EAC-CPF. No need to require one if we permit objectXMLWrap.
Removed stray line break
Moved <objectxmlwrap> to an immediate following sibling of relationentry

To match EAC-CPF
Moved dates in relation to following objectxmlwrap

To more closely follow EAC-CPF
Deleted commented definition for placeEntry

Was copied in from EAC-CPF
In relation, moved placentry

Now following sibling of date elements, to follow EAC-CPF more closely.
Merge remote-tracking branch 'origin/mike_post-beta_review' into develop