New clvmd init script

[Fabio M. Di Nitto <fdinitto@redhat.com>]

Hi guys,

Started from https://bugzilla.redhat.com/show_bug.cgi?id=533247

- fix whitespaces all over (tabs/spaces)
- use secure path
- remove hardcoding of paths for tools
- increase timeout to 30 secs (on Chrissie request)
- source both cluster and clvmd for options (like all the other cluster
init scripts)
- add clustered_vgs and _lvs commodity fns
- move rh_status* fns at the top, so they can be reused
- heavily cleanup start and stop fns from redundant code and unnecessary
loops
- drop wait_for_finish. According to docs killproc will send first
specified signals and then SIGKILL and do the way for us.
- improve output from status
- make the init script lsb compliant

Please review and let me know if we need to add more changes.

Both Chrissie and I have tested this new version.

Fabio
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