Simplify Join() params.

Remove Join().

Add Split() and Join() for working with statsd metric names.

Remove lockableBuffer.

Run GoLint and update comments.

Remove util files.

Fix default Count() method.

Add license.

Calculate milliseconds in timers correctly.

Support Timing() in MockStatsdClient.

Tidy.

Fix Flush() race condition.

Clarify goroutine safety.

Benchmarks are stable.

Tidy up URL parsing, add tests.