Fixes #5463: Add a placeholder for new technique on old versions
Merge pull request #503 from peckpeck/bug_5463/add_a_placeholder_for_new_technique_on_old_versions

Fixes #5463: Add a placeholder for new technique on old versions
Fixes #5567: initial promises should not use yum list installed
Merge pull request #510 from ncharles/bug_5567/initial_promises_use_yum

Fixes #5567: initial promises should not use yum list installed
Fixes #5547: Rewrite system techniques to use normal ordering on 2.6
Refs #5446: Rewrite techniques to use only ${}