Team members should not be able to control who is an admin of the
workspace.
Move edit roster template to the templates directory.
remove unused import
Merge branch 'members-view-roster'

Conflicts:
	src/ploneintranet/workspace/browser/configure.zcml
Merge branch 'master' into team-managed

Conflicts:
	src/ploneintranet/workspace/browser/roster.py