Partial implementation of validation of ContextExpr uses; currently
can't find the container for an object because references don't exist to
all the parts. Need to make ref building part of the metaclass __new__
This introduces the ComponentGroup wrapper and re-implements the
MultiComponentGroup wrapper in terms of MultiComponent and
ComponentGroup. Also, since argument validation is still a bit of
a problem, this has been disabled along with the tests that exercise it.
Introduced the idea of an independent ComponentGroup which holds a
single instance of a set of components, and then re-implemented
MultiComponentGroup in terms of MultiComponent and ComponentGroup.
Fleshed out tests for ComponentGroup, improved overall test coverage.
Merge branch 'master' of https://github.com/haxsaw/actuator.git
Merge branch 'multi-component-refactor'