Fixes #1175: new versions of aptPackageInstallation and rpmPackageInstallation to get 'repaired' status again
Fixes #3815: Package installation using yum doesn't work due to bad package_name_convention
Fixes #3445: Clean classes expression in rpmPackageInstallation
Refs #1175: amend original fix for #1175 to use non-deprecated body classes
Refs #1175: since I added a new version, also increment the version number hidden in a path in metadata.xml
Merge pull request #163 from jooooooon/bugs_1175_3815_3445/new_versions_of_rpmPackageInstallation_and_aptPackageInstallation_to_fix_several_bugs

Bugs 1175 3815 3445/new versions of rpm package installation and apt package installation to fix several bugs
Merge branch 'branches/rudder/2.4' into branches/rudder/2.6
Merge branch 'branches/rudder/2.6' into branches/rudder/2.7