Participants can always view and access a workspace. Clarify external visibility.
Update bootstrap.py to version 2
added test to check if user can be added to workspace
Merge branch 'master' of https://github.com/ploneintranet/ploneintranet.workspace
Update CONTRIBUTORS.txt
Merge branch 'master' into workspace-workflow
Block local roles on workspaces
Rework the private workflow test to get around permissions caching