OZP-17: Migrate dashboard designer.

- Refactor to support ok and cancel classes
Merge branch 'master' into feature/ozp-150-create-dashboard
OZP-16 Restored unit of work filter in REST bundle; Create a Person record for the current user if one does not exist.
OZP-73: Add changelogs for DB script generation
OZP-17: move defaults to prototype to allow modifaction globally
Merge branch 'master' into feature/ozp-73-persistence-api
OZP-10: Migrate displaying a dashboard.

update pane layouts when box layout changes
Merge branch 'master' into feature/ozp-150-create-dashboard
OZP-17: fix memory leak
OZP-246: create widget state collection for floating and background widgets
OZP-672 - launchmenu updates, initial launchmenu rendering and start of widgetlaunching impl
Merge branch 'master' of https://github.com/ozoneplatform/ozp-commons into feature/ozp-16-migrate-dashboard-switcher