Bump src/dea_next:

CC was bumped and now no longer does synchronous staging, so I'm bumping DEA
so they both have async staging as the default.

Mark Rushakoff (1):
      Use a real patch level in .travis.yml

Mark Rushakoff and Sarah Chandler (1):
      dea.discover is no longer used

Onsi Fakhouri and Sarah Chandler (2):
      Integration tests are green again.
      removed deprecated async flags

Onsi Fakhouri, Sarah Chandler and Tim Labeeuw (1):
      staging is now async.  still need to fix failing rails spec.