Fixes of current logging, and cleanup of out of date code

* Remove incorrect (out of date) logging, and some support code for it
  * Various client-side logging
  * onEditPageAttemptSave/page-save-attempt
* Fix logging for "click to close".
* Clarify addReturnToModules name and documentation
* Update to schema ID 5944134 (only difference to schema is docs)
* Various TODOs.  Some of the code can still be simplified more
  now that the logging is no longer needed

Change-Id: Id90418a6058deba030cb0af7d9660167d49fa3ab
Merge "Fixes of current logging, and cleanup of out of date code"