Added ping tests
"read" => "data"

- Update all classes that emit a "read" event to also emit a "data" event. "read" will be removed prior to v1.0
- Update all "read" events to "data" in examples.

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Render doc examples

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>