Bump src/loggregator

Bump :
  Johannes Tuchscherer:
     Bumping the consumer lib in loggregator
     Adding loggregator_consumer to the loggregator repo to ensure that we stay compatabile
  Alex Jackson:
     remove gosetno loggers from handlers
     minor change to improve test reliability when running on a heavly loaded CI box
     properly close the websocket connection
     fix --recent
     fix loggregator url in traffic controller proxy
     finish websocket handler refactoring
     refactor to make http handler more portable; make tests more reliable
     more stable tests that do not compare timestamps
     Merge pull request #21 from cloudfoundry/69457338-http-recent
     attempt to fix race on travis
     attempt to fix race condition on travis
     add missing test for metrics
     remove empty suite
     bump websocket lib to latest
     change verbose error messages to debug
     migrate websocket server test to ginkgo
  John Tuley:
     extract handlers and servertools to loggregator lib
     fix regexp in tests
     [#69457338] Ensure that HttpHandler waits for messages to come back from loggregator
     [#69457338] Use HttpHandler for /recent
     [#69457338] Make trafficcontroller.HttpHandler a http.Handler
     [#69457338] Clean up http_handler_test
     [#69457338] Checkpoint
     Remove dead private methods from sinkmanager
     Fixing a race condition in tests
     [#69354178] Add test coverage for websocket sink; move websocket server into sub-package websocketserver
     go fmt
     [#69354178] Moving the websocket server tests into the right package
     [#69354178] remove loggregatorlib tests from travis build - loggregatorlib already has its own travis build - loggregatorlib performance tests didn't actually run
  Johannes Petzold:
     support old style keep-alives from cf client; better kills after tests
     fix flaky tests
     factor out keep-alive logic for reuse in TC
     Update README to use SVG Travis badge
  Adam Stegman ⚛:
     Merge pull request #22 from duglin/cc-vs-ccng
  Doug Davis:
     merge cc/ccdb with ccng/ccdb_ng

Signed-off-by: John Tuley <jtuley@pivotallabs.com>