Changes work streams dashboard widget to respect the current site.
Fixes AuthenticationFilter.Static.getUser to always return the ToolUser if they're authenticated instead of only if requireUser has been called before.
Changes site widget empty owner label from Global to None for clarity.
Stores the initial variation so that objects created under it can continue to use it as the original data.
Fixes errors not showing up per field when saving a variation.
Merge branch 'master' of github.com:perfectsense/brightspot-cms