Prepare 2.8.1 release
Prepare 2.8.1 release

jollysean/Geocoder,Nyholm/Geocoder,arunlodhi/Geocoder,jmcclell/Geocoder,collmomo/Geocoder,svrdlic/Geocoder,geocoder-php/Geocoder,mubassirhayat/Geocoder,misterion/Geocoder,svrdlic/Geocoder,Nyholm/Geocoder,tylerhebel/Geocoder,geocoder-php/Geocoder,shamyyl/Geocoder,heatery/Geocoder