Update rails_admin dependency to version 0.4.4
Update rails_admin dependency to version 0.4.4

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