2.10.4 Publisher component

No big changes, just miscellaneous enhancements:

• new catchErrors attribute on p:group, allowing part of publisher request to fail without causing failure of the entire request.

• new inlineParts attribute on p:annotatedDocument, allowing to inline the content of non-Daisy-HTML parts.

• runtime instead of compile-time evaluation of document, branch, language, version attributes of p:document (making it possible to handle errors in these with catchErrors on p:group)

• new hierarchyElement attribute on p:document, to specify how to run over the values of a hierarchical link field.

• when used in queries in publisher requests, the ContextDoc() function of the query language now supports a new argument to specify how many "document contexts" to climb up (previously, only the most recent document context was accessible).

• link annotation: information about the parts in the target document now includes size and mime-type, so that it possible to show these in the rendered link.