Do not depend on Yum

Fixes #39.

Merging directly as trivial.
Correct schema for ssh LogLevel

The schema for ssh LogLevel was following standard SYSLOG levels rather than
the correct ssh options, correct this from the schema as used at RAL.
Fix the Pan code in ncm-network.

The import script failed to set the correct headers and some versions
were hardcoded by mistake.
Use append for register_change.

It's more friendly not to override any configs the user might already
have there.
Fix the RPM queries in ncm-gpfs
Create a managed_files directory.

For compatibility with previous releases.

Conflicts:
	ncm-profile/pom.xml
Fix POM
[maven-release-plugin] prepare release ncm-components-13.1.0-rc2
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release ncm-components-13.1.0-rc3
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release ncm-components-13.1.0
[maven-release-plugin] prepare for next development iteration