tweaked update-downloads.rb to detect snapshots properly
tweaked update-downloads.rb to detect snapshots properly

yinquan529/platform-external-robolectric,lexs/robolectric,palfrey/robolectric,thiz11/platform_external_robolectric,gabrielduque/robolectric,IllusionRom-deprecated/android_platform_external_robolectric,eric-kansas/robolectric,ChameleonOS/android_external_robolectric,zhongyu05/robolectric,yuzhong-google/robolectric,zbsz/robolectric,yinquan529/platform-external-robolectric,tuenti/robolectric,geekboxzone/mmallow_external_robolectric,cc12703/robolectric,cesar1000/robolectric,pivotal-oscar/robolectric,spotify/robolectric,mag/robolectric,davidsun/robolectric,gabrielduque/robolectric,WonderCsabo/robolectric,davidsun/robolectric,1zaman/robolectric,1zaman/robolectric,holmari/robolectric,geekboxzone/mmallow_external_robolectric,tec27/robolectric,fiower/robolectric,jingle1267/robolectric,macklinu/robolectric,cc12703/robolectric,erichaugh/robolectric,fiower/robolectric,charlesmunger/robolectric,ChengCorp/robolectric,tyronen/robolectric,geekboxzone/mmallow_external_robolectric,kriegfrj/robolectric,MIPS/external-robolectric,daisy1754/robolectric,geekboxzone/lollipop_external_robolectric,gb112211/robolectric,Omegaphora/external_robolectric,paulpv/robolectric,eric-kansas/robolectric,rburgst/robolectric,paulpv/robolectric,yxm4109/robolectric,kriegfrj/robolectric,plackemacher/robolectric,macklinu/robolectric,yuzhong-google/robolectric,VikingDen/robolectric,karlicoss/robolectric,rossimo/robolectric,geekboxzone/lollipop_external_robolectric,tjohn/robolectric,trevorrjohn/robolectric,android-ia/platform_external_robolectric,yxm4109/robolectric,mag/robolectric,diegotori/robolectric,tjohn/robolectric,daisy1754/robolectric,diegotori/robolectric,MIPS/external-robolectric,tmrudick/robolectric,tyronen/robolectric,svenji/robolectric,upsight/playhaven-robolectric,ocadotechnology/robolectric,gb112211/robolectric,jongerrish/robolectric,tuenti/robolectric,yuzhong-google/robolectric,androidgilbert/robolectric,amarts/robolectric,geekboxzone/lollipop_external_robolectric,toluju/robolectric,ChameleonOS/android_external_robolectric,gruszczy/robolectric,geekboxzone/mmallow_external_robolectric,rburgst/robolectric,rossimo/robolectric,holmari/robolectric,charlesmunger/robolectric,erichaugh/robolectric,xin3liang/platform_external_robolectric,zhongyu05/robolectric,paulpv/robolectric,trevorrjohn/robolectric,hgl888/robolectric,charlesmunger/robolectric,android-ia/platform_external_robolectric,Omegaphora/external_robolectric,BCGDV/robolectric,ecgreb/robolectric,tmrudick/robolectric,pivotal-oscar/robolectric,tec27/robolectric,holmari/robolectric,cesar1000/robolectric,toluju/robolectric,tjohn/robolectric,eric-kansas/robolectric,WonderCsabo/robolectric,rongou/robolectric,VikingDen/robolectric,ChengCorp/robolectric,ChengCorp/robolectric,amarts/robolectric,ChameleonOS/android_external_robolectric,zbsz/robolectric,mag/robolectric,kriegfrj/robolectric,zhongyu05/robolectric,yinquan529/platform-external-robolectric,tmrudick/robolectric,IllusionRom-deprecated/android_platform_external_robolectric,androidgilbert/robolectric,android-ia/platform_external_robolectric,trevorrjohn/robolectric,tuenti/robolectric,jingle1267/robolectric,toluju/robolectric,gruszczy/robolectric,fiower/robolectric,erichaugh/robolectric,palfrey/robolectric,tec27/robolectric,lexs/robolectric,jongerrish/robolectric,androidgilbert/robolectric,thiz11/platform_external_robolectric,IllusionRom-deprecated/android_platform_external_robolectric,gabrielduque/robolectric,spotify/robolectric,BCGDV/robolectric,jongerrish/robolectric,yinquan529/platform-external-robolectric,ocadotechnology/robolectric,ocadotechnology/robolectric,svenji/robolectric,WonderCsabo/robolectric,rburgst/robolectric,jongerrish/robolectric,macklinu/robolectric,ecgreb/robolectric,VikingDen/robolectric,cc12703/robolectric,karlicoss/robolectric,androidgilbert/robolectric,BCGDV/robolectric,1zaman/robolectric,diegotori/robolectric,lexs/robolectric,plackemacher/robolectric,hgl888/robolectric,tyronen/robolectric,davidsun/robolectric,palfrey/robolectric,wyvx/robolectric,cesar1000/robolectric,yxm4109/robolectric,plackemacher/robolectric,yxm4109/robolectric,Omegaphora/external_robolectric,rossimo/robolectric,svenji/robolectric,gruszczy/robolectric,pivotal-oscar/robolectric,spotify/robolectric,gb112211/robolectric,xin3liang/platform_external_robolectric,ecgreb/robolectric,MIPS/external-robolectric,hgl888/robolectric,wyvx/robolectric,rongou/robolectric,daisy1754/robolectric,jingle1267/robolectric,amarts/robolectric,android-ia/platform_external_robolectric,BCGDV/robolectric,xin3liang/platform_external_robolectric,wyvx/robolectric,Omegaphora/external_robolectric,karlicoss/robolectric,geekboxzone/lollipop_external_robolectric,zbsz/robolectric,thiz11/platform_external_robolectric,rongou/robolectric