New static asterisk.conf.sample file.

This simply moves the functionality from the Makefile (cleaning it up) into an external
asterisk.conf.samples file.  Also updates formatting (easier to read) and grammar
changes to asterisk.conf.samples.

(closes issue #17027)
Reported by: pabelanger
Patches:
      0017027.asterisk.conf.v6.patch uploaded by pabelanger (license 224)
Tested by: qwell, lmadsen, pabelanger, chappell

Review: https://reviewboard.asterisk.org/r/616/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@261124 65c4cc65-6c06-0410-ace0-fbb531ad65f3