* Update version number (#4759)
* update copyright (#4775)
* Observe changes to sub-objects in flexible layouts. (#4780)
* Get child of flex layout as mutable if possible
* Fix bug when no default notebook defined
* Follow domain object changes for Independent time conductor (#4783)
* Track if domain object changes when independent time conductor is in use.
* fix typo when using fallback template (#4784)
Co-authored-by: Scott Bell <scott@traclabs.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
* Implements User API and example user plugin
Co-authored-by: John Hill <john.c.hill@nasa.gov>
Co-authored-by: Charles Hacskaylo <charlesh88@gmail.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
