Remove dirty hack because of Proj4JS. Now definitions support '+' in title and the hack is not needed anymore

git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@3785 e100092c-b5e6-494f-8bdf-19c1ff2a4001
#5171 (and most probably #5158): fixing scale and zoom parameters. Scale tops zoom parameter. If Scale is not valid, then zoom is now correctly taken. Also, much more flexible with scale parameter now (unprecise parameter still results in reasonable zoom level)

git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@3786 e100092c-b5e6-494f-8bdf-19c1ff2a4001