Fixes #4965: Update CPAN packages list on rudder-agent Makefile
Merge pull request #349 from Kegeruneku/bug_4965/int/4965_do_not_rely_on_cpan_for_every_build

Fixes #4965: Update CPAN packages list on rudder-agent Makefile
Fixes #4977: rudder-agent build should use local tarballs if available
Merge pull request #351 from jooooooon/bug_4977/rudder_agent_build_should_use_local_tarballs_if_available

Fixes #4977: rudder-agent build should use local tarballs if available
Merge branch 'branches/rudder/2.6' into branches/rudder/2.9