Potential for duplicate datasets

[parthdarji55]

So the current way we identify datasets is by their DOI.
But lets say one DOI link is
http://dx.doi.org/10.5067/TRMM/TMPA/DAY/7

and another is
http://dx.doi.org/10.5067/TRMM/TMPA/DAY/7/

They differ by a slash, but this would cause two different nodes to be created for the same DS.

The fix which should be implemented before more datasets are added, is just to make a standard.
have every new dataset added remove the last slash if there exists one.