GDC Client Changed URL and file format in Latest update

[jjacobson95]

This breaks HCMI which uses the GDC data transfer tool. A fix is in progress.

Their URL was updated.
Their File structure within the downloaded zip file was also changed.

[sgosline]

I fixed this in the PDO branch: https://github.com/PNNL-CompBio/coderdata/blob/panc_pdo/build/hcmi/02-getHCMIData.py

[jjacobson95]

Great, I've also got this fixed on drop_drugs.