Support for ulimit values in initscript for RHEL and clones

[Tollef Fog Heen]

]] Ingvar Hagelund

> The default number of processes/threads (ulimit -u) on rhel6 and clones
> is 1024, which is too little for varnish.
> 
> This patch adds a variable NPROC to sysconfig/initscript suppport in the
> rpm package. If no value is set in sysconfig, it will be set to 10000.

Thanks, finally got around to committing this now.

-- 
Tollef Fog Heen
Technical lead | Varnish Software AS
t: +47 21 98 92 64
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