set ASTVARRUNDIR=$(localstatedir)/run/asterisk as default path

set ASTVARRUNDIR=$(localstatedir)/run/asterisk as default path

When running asterisk as non-root and without this patch the pidfile wants
to go into /var/run/asterisk.pid. This directory is not writable for
the non-root user and changing permissions is not an option.
Putting it in /var/run/asterisk/asterisk.pid makes it possible
to set permissions on the /var/run/asterisk dir so everything
works as it should be.

Patched committed is based on pabelanger's patch.

(closes issue #13153)
Reported by: pabelanger
Patches:
      2009012900_bug13153-nonrootscripts.diff.txt uploaded by mvanbaak (license 7)

Review: http://reviewboard.digium.com/r/139/

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@177852 65c4cc65-6c06-0410-ace0-fbb531ad65f3