Java Buildpack v2.4

This change updates the Java Buildpack to version 2.4.  Version
2.4 has the following highlights:

* Configurable Access Logging in Tomcat (via Guillaume Berche)
* Session Replication working with Pivotal Redis Service (via John McTeague)

Both the online and offline buildpacks are updated as part of this
change.
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Eric Malm and Graeme Davison:
     Add additional tests for security group defaults ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29639288 )
  Joseph Palermo:
     Clean up controller specs ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29631246 )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Eric Malm and Graeme Davison:
     Bump API version to 2.8.0 ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29643626 )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Matthew Sykes:
     Revert "Clean up Buildpack and Buildpack Controller" ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29655914 )
bump loggregator

automatic promotion by GoCD workflow LoggregatorAcceptance/4 > PromoteInCfRelease/1 > PromoteInCfRelease
Merge remote-tracking branch 'origin/pr/437' into develop
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Matthew Sykes:
     Reduce the cost of initializing a blobstore connection ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29727396 )

[#74825494]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Eric Malm:
     Change symbols to strings for Fog directory get ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29738658 )
  Joseph Palermo:
     Fix bug introduced when cleaning up buildpacks ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29736021 )
     Revert "Revert "Clean up Buildpack and Buildpack Controller"" ( Travis Unknown )
     Clean up spec database usage ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29735174 )
     Remove sqlite support ( Travis Unknown )

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
add blobs for release v174
Bump src/dea_next

Bump cloudfoundry/dea_ng:
  Joseph Palermo:
     Merge remote-tracking branch 'origin/pr/136' ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/29744222 )
  Matthew Sykes:
     Move periodic varz task into a separate fiber ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/29427650 )
  Michael Fraenkel:
     periodically add warden's container list to varz ( Travis Unknown )
  youngstrommj:
     Remove stdout and stderr logs from app startup. ( Travis Unknown )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Joseph Palermo:
     Only add citext postgres extension on test databases ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29862583 )
     Automatically add "(deprecated)" to API docs for deprecated endpoints ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29740274 )
Bump src/warden

Bump cloudfoundry/warden:
  Joseph Palermo:
     Merge remote-tracking branch origin/pr/69 ( Travis created: https://travis-ci.org/cloudfoundry/warden/builds/29906534 )
  Weian Deng:
     Container net reachability check is made more robust to handle both the public internet case and the private intranet case. ( Travis Unknown )
Bump src/gorouter

Bump :
  Weian Deng:
     Use component's uuid as GreetMessage's uuid
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Graeme Davison and Joseph Palermo:
     Rescue db_config load error when file does not exist in a release ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/29934198 )
Bump src/collector

Bump cloudfoundry/collector:
  Weian Deng:
     Always set the Collector::config before each test-case run. ( Travis started: https://travis-ci.org/cloudfoundry/collector/builds/29997550 )
Created v174 by mistake. Skipping 174 and going to create 175.

Revert "add blobs for release v174"

This reverts commit b18ce528d7ed2f8f3ff15330b1c6b3806f92d3dd.

Signed-off-by: Sridhar Vennela <svennela@pivotallabs.com>
Adds UAA client for notifications service

[#74056764]
add blobs for release v175
Bump src/collector

Bump cloudfoundry/collector:
  Joseph Palermo and Zach Robinson:
     Make collector aware of EVACUATING state. ( Travis created: https://travis-ci.org/cloudfoundry/collector/builds/30021054 )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Joseph Palermo and Zach Robinson:
     Replace YAJL with MultiJson. ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/30028152 )