Support virtual domain syntax in s3 assetstore test
Support virtual domain syntax in s3 assetstore test

Something changed with a recent change to boto (or moto) that broke our
test assertion in `assetstore_test.py`.  Since S3 supports both URL's,
this just modifies the regex to pass if it finds either.

data-exp-lab/girder,data-exp-lab/girder,jbeezley/girder,RafaelPalomar/girder,girder/girder,jbeezley/girder,Kitware/girder,data-exp-lab/girder,Kitware/girder,data-exp-lab/girder,Xarthisius/girder,Xarthisius/girder,Kitware/girder,girder/girder,kotfic/girder,kotfic/girder,kotfic/girder,Kitware/girder,kotfic/girder,Xarthisius/girder,manthey/girder,RafaelPalomar/girder,kotfic/girder,Xarthisius/girder,girder/girder,jbeezley/girder,manthey/girder,data-exp-lab/girder,Xarthisius/girder,jbeezley/girder,RafaelPalomar/girder,manthey/girder,manthey/girder,girder/girder,RafaelPalomar/girder,RafaelPalomar/girder