Bump src/dea_next

Bump cloudfoundry/dea_ng:
  Mark Rushakoff:
     Merge pull request #62 from cloudfoundry/add_index_for_logging ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/11707074 )
  Damien Le Berrigaud:
     Adding index for logging ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/11706561 )
  Alex Suraci:
     fix file server address ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/11644070 )
     beef up file server address ip selection ( Travis Failed: https://travis-ci.org/cloudfoundry/dea_ng/builds/11644021 )
     simplify test scripts ( Travis Failed: https://travis-ci.org/cloudfoundry/dea_ng/builds/11578785 )
  Tim Labeeuw:
     Temp fix for the Linux vs Mac EOF error ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/11603445 )
  Alex Suraci and Sarah Chandler:
     fix travis config ( Travis Failed: https://travis-ci.org/cloudfoundry/dea_ng/builds/11576497 )

Signed-off-by: Matthew McNew <mmcnew@pivotallabs.com>