* MOD373 Play and stop btns wired up.
* MOD373 Re-adds run helper.
* Cleans up play and stop methods. Adds intermediate loading btn.
* Wires up opening profile directory.
* Further wires up profile page to process events.
* Listens in on processe for btn display.
* Merges master into profilepage branch.
* Drops process_listener during unmount.
* Ensures uuid has value for listener. Checks event uuid in profile_listener.
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