rpearce: Improve tests   * Nudge a few more tests towards using 'should include' for arrays   * instead of 'eql' avoid ordering issues   * Use find instead of find_environment this allows the machine to be   * discovered even if the naming of the stacks definition changes
rpearce: Improve tests
  * Nudge a few more tests towards using 'should include' for arrays
  * instead of 'eql' avoid ordering issues
  * Use find instead of find_environment this allows the machine to be
  * discovered even if the naming of the stacks definition changes

tim-group/stackbuilder,tim-group/stackbuilder