Add XSLT extensions indigenous to Yggdrasil(TA937) and Improve XML/XSL mplementation in Yggdrasil(TA938).
Followup on: Define the transformation for ADL representations(TA921) and Create XSLT for ADL representations(TA922)
Changed all XSLT scripts to use new extensions.
Merge branch 'master' of https://github.com/Det-Kongelige-Bibliotek/Yggdrasil

Conflicts:
	src/main/java/dk/kb/yggdrasil/Workflow.java