Fixes #4454 - Add zypper version check
Refs #4454 - Add comments into check_zypper_version, change version to check and class created to be more explicite
Refs #4454 - Use class name more generic, add method into bundlesequence and use the modukle only on SuSE
Refs #4454 - Permit to use Zypper when installing a package on SuSE 10 if the version of zypper is ok
Refs #4454 - Add changelog lines, fix wrong path of rpmPackageInstallationData outpath and fix typo in if statement of check_zypper_version
Merge pull request #283 from nperron/ust_4449/dev/4454_add_check_of_zypper_version

Fixes #4454 - Add zypper version check
Fixes #4465 - Fix typo in metadata.xml
Merge pull request #285 from nperron/ust_4449/dev/4465_Fix_typo_in_metadata

Fixes #4465 - Fix typo in metadata.xml
Merge branch 'branches/rudder/2.6' into branches/rudder/2.8

Conflicts:
	techniques/system/common/1.0/metadata.xml
Merge branch 'branches/rudder/2.8' into branches/rudder/2.9
Merge branch 'branches/rudder/2.9'