Test updated 64 bit glmnet

[agitter]

This pull request tests the updated glmnetMex.mexa64 from @atuldeshpande. It currently gives a runtime error:

Invalid MEX-file '/tmp/.mcrCache9.4/SINGE_0/glmnet_matlab/glmnetMex.mexa64': libgfortran.so.5: cannot open shared object file: No such file or directory.

wget to the biostat server gave errors:

$ wget https://www.biostat.wisc.edu/~gitter/tmp/$md5/SINGE_Test        
--2020-07-31 09:51:37--  https://www.biostat.wisc.edu/~gitter/tmp/3df4816680fcb1fd3f4e8528a327a103/SINGE_Test
Resolving www.biostat.wisc.edu (www.biostat.wisc.edu)... 144.92.73.51
Connecting to www.biostat.wisc.edu (www.biostat.wisc.edu)|144.92.73.51|:443... connected.
ERROR: cannot verify www.biostat.wisc.edu's certificate, issued by ‘/C=GB/ST=Greater Manchester/L=Salford/O=COMODO CA Limited/CN=COMODO RSA Extended Validation Secure Server CA’:
  Issued certificate has expired.
To connect to www.biostat.wisc.edu insecurely, use `--no-check-certificate'.

That will have to be resolved before merging this.