Update rack dependency to version 1.3.0.beta2
Update rack dependency to version 1.3.0.beta2

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