Support Ruby 1.8 and 1.9 by rescuing Math::DomainError only if it is defined
Support Ruby 1.8 and 1.9 by rescuing Math::DomainError only if it is defined

nicnilov/geokit,mapbox/geokit,sferik/geokit,malmckay/geokit,internmatch/geokit,pettomartino/geokit,geokit/geokit,lsaffie/geokit,suranyami/geokit