removed obsolete method of base WSGI App
replaced gloabl attrs with blocks for template titles
removed obsolete defs in detailedWithToC template
made ToC interactive
Squashed 'dbs/ead/xsl/' changes from d3b35fa..e047252

e047252 enable `contents.xsl` to be applied to EAD document

git-subtree-dir: dbs/ead/xsl
git-subtree-split: e047252878732bf8a40c9beafa1f9075545940cc
updated to latest ead-xslt

Merge commit 'd2ca7d08ee4b0cb24a70a95ad921e61aa2d7dc1e' into feature/wsgi
added table of contents transformer
added printable ToC capability to record App
updated printable ToC link in contents.xsl
renamed globalReplacements -> defaultContext
repurposed _outputPage

Repurposed _outputPage to output given page to a file after
making some global replacements.
made global replacements unicode friendly
use _outputPage to make replacements and cache pages
revert any unreolved page links to page 1
retrieve ToC from cache if possible
tidied up WSGI App imports
add method to transform Record using given Transformer id
avoid some Unicode issues...
allow handling methods to set HTTP response code
redirect from toc.html -> record?page=toc