removed HTML hard page break in fullSplit.xsl

Replaced with an XML processing instruction "soft-break" that can
be used by processing software to split the document into chunks
appropriate for paging.
embed ToC into document in fullSplit.xsl

ToC is no longer created in a separate file, but is embedded into
the main returned document. It can be split off by post-processing
software if necessary (e.g. for insertion into columns.)
always include div.toclist to aid post-processing

If /ead/archdesc/dsc is absent, this div will be empty
enable `contents.xsl` to be applied to EAD document

Enabled `contents.xsl` to be applied directly to an EAD document.
Previously this XSL sheets would only give the correct output when
imported into another XSL sheet, and the correct template called
using `call-template`.
enable other root tags

Enabled full.xsl, fullSplit.xsl and summary.xsl to be applied to XML
with root tags other than <ead> or <c3:component> (e.g.
<sru:searchRetrieveResponse>)
docs: updated README for Archives Hub
refactoring of fork from cheshire3archives

* renamed package cheshire3archives -> archiveshub
* renamed JS and CSS -> ah.search.X
updated default app configs for Archives Hub
Merge result sorting enhancements from upstream

Merge branch 'develop' of github.com:cheshire3/cheshire3-archives into develop
replace CherryPyWSGIServer with entire CherryPy framework

Enables more extensive configuration for static content etc.
updated Mako template module directory
fix base URLs for Archives Hub layout
updated package name in footer
updated Home page link
replaced Google JQuery with Archives Hub JavaScript
removed background image from header
fixed location for delete sprite image
updated utility bar, added email repository link

Updated utility bar in line with discussions in issue #658
 * added explanatory line
 * replaced Archon lookup with direct Email repository
 * reworded location and using material links
updated defaultPath in dbs/ead/config.xml.tmpl
updated templates for true Archives Hub banner