Merge pull request openzipkin#890 from openzipkin/reduce-customness

Reduces customness of zipkin-web by eliminating filesystem args

Doc bug

Merge pull request openzipkin#884 from openzipkin/version-bumps

Bumps versions, most notably Kafka to 0.9 and Finagle to 6.31

Merge pull request openzipkin#879 from openzipkin/test-time

Adjusts SpanStoreSpec to use realistic timestamps

Merge pull request openzipkin#873 from openzipkin/gradle-2.9

Updates to latest gradle 2.9

Merge pull request openzipkin#866 from openzipkin/leave-inflight-alone

Stops setting Span.timestamp when there's only one annotation

Merge pull request openzipkin#861 from openzipkin/yuri.cassandra-dura…

…tion-query

Stores timestamps in milliseconds, native format for Cassandra.

Merge pull request openzipkin#853 from openzipkin/trim-dbs

Drops untested H2, PostgreSQL drivers; switches MySQL to MariaDB

Merge pull request openzipkin#847 from openzipkin/adrian-typos

Fixes typos in cassandra duration insert and re-enables tests

fixes build, broken by javadoc