Disable Pangaea (implementation will follow) (#48)

Author: J535D165

datahugger/api.py

@@ -53,7 +53,7 @@
     "get.iedadata.org": DataOneDataset,
     "usap-dc.org": DataOneDataset,
     "iys.hakai.org": DataOneDataset,
-    "doi.pangaea.de": DataOneDataset,
+    # "doi.pangaea.de": DataOneDataset,
     "rvdata.us": DataOneDataset,
     "sead-published.ncsa.illinois.edu": DataOneDataset,
     # DataVerse repositories (extracted from re3data)