Improved: CIS 1.2.2. RPM GPG key improved. Checks and imports correctly if absent
Improved: CIS 1.2.3. Replaced the static yum.conf with an augeas version that only changes the intended gpgcheck parameter.
Improved: Parameterized the cis class to make defaults easier (cis::params) and hiera() lookup calls redundant. Backwa
rds compatible with original setup
Rebased on top of master, and squashed commits.