Added support and tests for circular objects in deepCopy().
Added support and tests for circular objects and updated npm version.
Merge branch 'issue_10_CircularCopy' of github.com:AgencyPMG/node-super-config into issue_10_CircularCopy
Merge pull request #11 from AgencyPMG/issue_10_CircularCopy

Added support and tests for circular objects in deepCopy().