Add duration test; report failed tests.
Fix endTs; remove alter TTL test.
Add limit annotations test.
Fixed annotation limit test.
Merge branch 'master' into fix-ss-validator

Conflicts:
	zipkin-common/src/main/scala/com/twitter/zipkin/storage/util/SpanStoreValidator.scala
Fix InMemorySpanStore.getTracesDuration.
Cleanup.
Cleanup.
cleanup
Handle traces with no annotations.
flatmap
merge tests.
forall
Actually we have the count already.
formatting the fails.
space.
Fix ThriftQueryServiceTest (ThriftQueryService uses getTracesDuration).
Noop to retry travis build.
Merge pull request #344 from nshkrob/fix-validator

Added more tests to SpanStoreValidator