cbuildbot: fix to point to new url
cbuildbot: fix to point to new url

BUG=6102
TEST=none

Change-Id: I69312fed2d0eb4934a964792b4af06160b8d8eb5

Review URL: http://codereview.chromium.org/3135049

zhang0137/scripts,coreos/scripts,trnubo/scripts,marineam/coreos-scripts,mjg59/scripts,vmware/coreos-scripts,trnubo/scripts,mischief/scripts,coreos/scripts,gtank/scripts,crawford/scripts,smilart/scripts,glevand/coreos--scripts,endocode/scripts,BugRoger/scripts,crawford/scripts,andrejro/coreos--scripts,bcwaldon/coreos-scripts,sigma/coreos-scripts,endocode/scripts,mischief/scripts,andrejro/coreos--scripts,smilart/scripts,marineam/coreos-scripts,fivethreeo/scripts,marineam/coreos-scripts,sigma/coreos-scripts,zhang0137/scripts,bcwaldon/coreos-scripts,trnubo/scripts,andrejro/coreos--scripts,gtank/scripts,fivethreeo/scripts,vmware/coreos-scripts,glevand/coreos--scripts,mjg59/scripts,endocode/scripts,mjg59/scripts,bcwaldon/coreos-scripts,BugRoger/scripts,mischief/scripts,smilart/scripts,nicescale/scripts,fivethreeo/scripts,BugRoger/scripts,zhang0137/scripts,nicescale/scripts,crawford/scripts,gtank/scripts,vmware/coreos-scripts,sigma/coreos-scripts,nicescale/scripts