Drop [6704] ("Make header level and report level configurable per-instance")

Conflicts:
	HISTORY.txt
	transforms/html_to_text.py
	transforms/rest.py
	transforms/safe_html.py
	version.txt

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41723 20353a03-c40f-0410-a6d1-a30d3c3de9de