Simplifying Org/Env creation for system tests.
Added a couple of functions to check whether a custom keyname or value is present. It is generic enough to be used with Organizations, Systems, and eventually Subscriptions.
Merge pull request #634 from omaciel/customfn

Added a couple of functions to check whether a custom keyname or value i...
Be able to recursively create entites even if they contain circular references.  Fixes #632
Merge pull request #633 from omaciel/builtinenv

Simplifying Org/Env creation for system tests.