doc: add TSC meeting minutes 2015-08-19
audio if anyone's interested in listening to today's meeting: https://soundcloud.com/node-foundation/tsc-meeting-2015-08-19
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
audio if anyone's interested in listening to today's meeting: https://soundcloud.com/node-foundation/tsc-meeting-2015-08-19