Refs #4842 - Add package_method 'ncf_generic' from 'generic' in packages.cf
Refs #4842 - Reduce number of requests of zypper by using a modified generic package_method
Merge pull request #54 from nperron/bug_4842/dev/reduce_numberof_request_of_zypper

Refs #4842 - Reduce number of requests of zypper by using a modified generic package_method