changed last instances of IpGeocoder -> Multigeocoder to make tests pass
changed last instances of IpGeocoder -> Multigeocoder to make tests pass

bellycard/geokit-acts-as-mappable,Spindle-Inc/geokit-rails,globalworks/geokit-rails3,jlecour/geokit-rails,kidzui/geokit-rails3,BlinkerGit/geokit-rails,zeke/geokit-rails,geokit/geokit-rails,geokit/geokit-rails3,jensb/geokit-rails