Bump src/loggregator

Bump :
  Alex Jackson:
     remove mac specific protoc plugin... build it in generate_proto script per platform
     Recent logs should close the connection after writing dump sink
     Cleanup websocket handler code
     move from time.After to a time.Timer to prevent go routine leak
     add lock to prevent data race
     reuse timer in dump sink
     share the app services cache between app store and app store watcher
     do not use a buffer size of 0 for dump sinks
     get the gunk out
     bump submodules
     change ports for testing to hopefully prevent collision on travis
     fix ci
     add local dir to GOPATH for travis build script
     fix ci
     add ability to pass cpuprofile and memprofile to mains
     update config files to work locally
     bump loggregatorlib
     update to go 1.2.1
     fix ci
     add error listener
     Remove section about etcd... the test script does this for you now
     bump loggregator lib to pick up new emitter code
     use etcd as a distributed cache for syslog drain information
     dont set TTL for app in etcd... rely on dump sink timeout for removal
     use copy of localhost certs as encoded []byte constants rather than generating files
     refactor sink_manager to use blacklist
     move tests to httptest #test-stability
     mark flaky test as pending
     use new test logger from loggregatorlib to not use real files when testing logging
     move message router to new pattern for input chans
     better manage sinks by auto matically unregistering them with Run() returns
     import new sinkmanager package
     remove empty function
     remove unused interface
     move sinkamanger to its own package
     more deterministic tests for syslog sink #test-stability
     remove usused test file
     move websocket server to its own package
     use more un-relialable hostname in DNS failure test #test-stability
     bail on tests early when failed
     refactored sinks
     test tests with ginkgo
     fix CI
     wip
  John Tuley:
     [#66618606] Fix memory leak around tickers in dump sink
     Avoid unnecessary deletes from ETCD [#66618606]
     Trying to fix another travis flakiness by avoiding a ip lookup for localhost
     Bumping loggregatorlib 8c0350e Increasing the timeout to reduce flakiness on travis
     [#63932928] Stop sending messages after unregistering syslog sink
     [#65121514] Remove unnecessary test file
  Johannes Tuchscherer:
     Update to match new ETCD interface [#66987960]
  jtuchscherer:
     Update README.md
  Dakota Bailey:
     Refactoring for the config parsing in the main method
     Merge branch 'fix-port-conflict' of github.com:morikat/loggregator into morikat-fix-port-conflict
     No deadline for websocket close messages
     Gingko-ify output proxy tests
     Fix errors with proxying websocket connections. Refactorings/Ginkifying
     Increase KeepAlive timeout to fix tests on slow Travis box
  morikat:
     Fix port conflict issue for All-in-One loggregator & traffic_controller
  Matthew McNew:
     Update SyslogWriter Test to use HTTPtest
     Add Ginkgo to travis path
     updated ginkgo setup
     Kick Travis Build
     fixup merge conflict badness
     Merge branch 'wip_loggregator_stages'
     green tests with refactor
     Major refactoring, stability fixes
  Jared Carroll:
     Add assertion to flaky spec

Signed-off-by: Dakota Bailey <dbailey@pivotallabs.com>
loggregator cleanup in warden template

Signed-off-by: Dakota Bailey <dbailey@pivotallabs.com>