This means that if a particular check is loaded twice (Same module, same check
name), the most recently loaded one will take precedence. This allows included
files to override default behavior with certain checks if required.

git-svn-id: https://labs.omniti.com/resmon/branches/resmon2@372 8c0face9-b7db-6ec6-c4b3-d5f7145c7d55