say pyexiv2 is no longer needed, and slight reformatting

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps40@21894 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Put maxsize back

git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps40@21895 4ae1f11a-8b86-4847-b8af-ab372f36d1fd