Catch and log errors raised while processing a received NATS message

This commit fixes an invalid NATS message kills all the DEA servers at once.
Use https:// rather than git:// for submodules

To avoid problems with the git protocol's port being blocked by a
firewall, use https URIs for submodules
Bump ruby buildpack

ruby buildpack shortlog de03ba7..7c62bc4

April Yu and Nate Clark (5):
      [#45453049] adds a PackageFetcher module to Ruby buildpack
      Merge remote-tracking branch 'heroku/master'
      [#45453049] use PackageFetcher for all needed packages
      Merge remote-tracking branch 'heroku/master'
      [#45453049] refactor PackageFetcher for new Heroku usage

Bleicke (1):
      Modify buildpack to use DEA cache

Dmitriy Kalinin and Nate Clark (2):
      use buildpack_cache dir
      Revert "Modify buildpack to use DEA cache"

Maria Shaldibina and Nate Clark (1):
      Suppress output when calling release

Terence Lee (5):
      railties is a better indicator of the rails gem
      check that the Gemfile + Gemfile.lock exist before trying to read those files
      rails 2 doesn't have railties
      bump to v53
      update changelog
first stab at README on how to run dea_ng with vagrant in isolation

Change-Id: Ibcb806f2a4de30c38aec6d2b6c603caa2be43e71
Bump java buildpack
Bump java buildpack

java buildpack shortlog de88698..1cdd7e9

Maria Shaldibina and Nate Clark (1):
      Support buildpack cache
Set buildpack cache dir in config
Bump ruby buildpack

ruby buildpack 7c62bc4..90d4896
April Yu & Mark Rushakoff (2):
      Merge remote-tracking branch 'heroku/master'
      Fix failing spec after merge

Maria Shaldibina and Nate Clark (5):
      use environment variable for buildpack cache directory
      Merge remote-tracking branch 'heroku/master'
      Update bundler to 1.3.2
      Merge branch 'master' of github.com:cloudfoundry/heroku-buildpack-ruby
      Remove output from package fetcher

Richard Schneeman (1):
      Merge pull request #73 from sumbach/patch-1

Sam Umbach (1):
      Update link to vulcan gem

Terence Lee (11):
      upgrade to bundler 1.3.2
      bump to v54
      update changelog
      Revert "upgrade to bundler 1.3.2"
      bump to v55
      update changelog
      Revert "Revert "upgrade to bundler 1.3.2""
      require psyched_yaml in the syck hack
      ruby 1.8.7 doesn't autoload rubygems
      bump to v56
      update changelog
update idle timeout for stream handler for tests that do not care about idling out

Change-Id: I9b49e9a0f056e205c44de3affad7af598fd3cc3a
stop asserting on timeout in health check to make tests less flaky

Change-Id: I4e75a9aaa6cb5958285d65ed2750430f145535fd
Merge pull request #5 from yudai/request/catch_errors_raised_while_processing_message

Catch and log errors raised while processing a received NATS message
Merge pull request #7 from wilkinsona/https-submodules

Use https:// rather than git:// for submodules