initial scenario
Merge branch 'master' into sandbox

Conflicts:
	devel.html
Removed unnecessary line.
Merge branch 'master' into sandbox

Conflicts:
	devel.html
Isolator >> model:read:
Merge branch 'master' into blackboard
Isolator >> model:modify:
Cosmetic: no more "might not been initialized".
Rename bb -> isolator in tests.
Merge branch 'master' into blackboard
Merge branch 'master' into sandbox
Merge branch 'master' into blackboard
Crude mockup.
Trapped-Backend package. Trapped class out.
Merge branch 'blackboard'

Conflicts:
	devel.html
No apparent need for index.html.