Update rails dependency to version 3.1.1
Update rails dependency to version 3.1.1

openshift-quickstart/adopt-a-hydrant-openshift-quickstart,CostantinB/adopt-a-hydrant,friendlycode/adopt-a-hydrant,CostantinB/adopt-a-hydrant,t-pfaff/adopt-a-hydrant,codeforanchorage/adopt-a-hydrant,codeforsavannah/adopt-a-garden,voyera/adopt-a-hydrant,codefornigeria/adopt-a-hydrant,Stackato-Apps/adopt-a-hydrant,billyfung/van-racks,mapmeld/Adopt-a-Siren-Macon,codeforamerica/adopt-a-siren,jasnow/adopt-a-hydrant,siruguri/adopt-a-drain,eebbesen/adopt-a-tree,openoakland/adopt-a-drain,HackMichiana/adopt-a-bus-stop,voyera/adopt-a-hydrant,codeforboston/adopt-a-hydrant,eebbesen/adopt-a-tree,Bryanprz/adopt-a-street,jasnow/adopt-a-hydrant,jasnow/adopt-a-hydrant,akintoey/adopt-a-hydrant,codeforamerica/adopt-a-siren,0111001101111010/adopt-a-spot-odu,HackMichiana/adopt-a-bus-stop,eebbesen/adopt-a-tree,siruguri/adopt-a-drain,codeforboston/adopt-a-hydrant,code4sac/adopt-a-light,baraka101/dar-adopt-a-mtaro,codeforamerica/adopt-a-hydrant,Bryanprz/adopt-a-street,codefornigeria/adopt-a-hydrant,jamiekelly/adopt-a-hydrant,OpenTwinCities/adopt-a-tree,billyfung/van-racks,akintoey/adopt-a-hydrant,codeforamerica/adopt-a-hydrant,Stackato-Apps/adopt-a-hydrant,friendlycode/adopt-a-hydrant,t-pfaff/adopt-a-hydrant,openoakland/adopt-a-drain,siruguri/adopt-a-drain,code4sac/adopt-a-light,OpenTwinCities/adopt-a-tree,jamiekelly/adopt-a-hydrant,voyera/adopt-a-hydrant,billyfung/van-racks,mapmeld/Adopt-a-Siren-Macon,t-pfaff/adopt-a-hydrant,akintoey/adopt-a-hydrant,friendlycode/adopt-a-hydrant,0111001101111010/adopt-a-spot-odu,codeforanchorage/adopt-a-hydrant,baraka101/dar-adopt-a-mtaro,openshift-quickstart/adopt-a-hydrant-openshift-quickstart,OpenTwinCities/adopt-a-tree,codefornigeria/adopt-a-hydrant,jamiekelly/adopt-a-hydrant,Stackato-Apps/adopt-a-hydrant,CostantinB/adopt-a-hydrant,codeforsavannah/adopt-a-garden,Bryanprz/adopt-a-street,OpenTwinCities/adopt-a-tree,codeforamerica/adopt-a-hydrant,baraka101/dar-adopt-a-mtaro,openshift-quickstart/adopt-a-hydrant-openshift-quickstart