Some cleanup
improved content collection
Added achor data to PageImpl
Added "item sequence" support to API, parser and formatter implementation
Added meta page number information
Added filter for multiple references to the same note on the same page
Modified the ItemSequenceEventImpl to only output items in the current volume
Moved the bulk of the paginator code to PageStructBuilder and PageSequenceBuilder
Reuse the result of StaticSequenceEventImpl if asked more than once
Removed paginator
Allow for re-pagination with same objects (work in progress)
Moved ContentCollection to FormatterContext
minor cleanup
Reorganizing (work in progress)
Removed a file that was added by mistake
More reorganizing
Content item unit tests
Added a check so that an exception is thrown instead of losing a collection from the output
Minor documentation updates
More reorganizing
Changed attribute page_content to page-content
Removed the use-when attribute on the toc-sequence element
Added range attribute to item-sequence element