Correctly set images/webstuff path in htmldoc.py and setup.py

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22578 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
make sure relationship calculator tool's relationships are in the UI language

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22581 4ae1f11a-8b86-4847-b8af-ab372f36d1fd