added template name br to commons_v2.xsl which should override the template of the same name in commons_v1.xsl
minor
introducing parameter $fcs_prefix to template formURL
- introduced $ignore parameter to  "classnames" template
- merged conflicting templates for tei:head
	- added handling for head[parent::list]
	- introduced [parent::div] to template that generates h1-h6 elements
	- introduced default template for heads in other contexts (generates span)
- merged conflicting templates for tei:hi