kernel posttrans and preun hooks for other packages

[Bill Nottingham]

Matt Domsch (Matt_Domsch at dell.com) said: 
> https://bugzilla.redhat.com/show_bug.cgi?id=433121
> 
> DKMS would like to have the opportunity to run it's
> auto-rebuilder/installer after a new kernel RPM has been installed,
> without having to wait for a system restart to run it.  Likewise, when
> a kernel RPM is removed, it would like to be able to run to remove
> modules managed by it.

Use triggers - this functionality already exists without kernel-specific
infrastructure.

Bill