Bump dea_next

git shortlog 1b26832..2b1f618
Bleicke and Jennifer Hickey (1):
      Bump vcap_staging

David Sabeti and Max Brunsfeld (1):
      Update health check logic

Jennifer Hickey and Nate Clark (1):
      Merge branch 'staging'

Jim Apperly (2):
      Update LICENSE and NOTICE
      Update LICENSE and NOTICE

Nate Clark and Kowshik Prakasam (1):
      [fixes #43791709] use 'mysql2' database adapter for rails

Change-Id: Ic384999a3b7a8f0d870f977c3cbf2183c4c7d2c4