pjsip: Handle outbound unregister correctly

This updates the status of the outbound registration
to reflect when it has been unregistered.  Since the
registration is unregistered but is not stopped, the
registration schedule remains active as before.  The
patch also updates the documentation of both the AMI
and CLI commands.

ASTERISK-24411 #close
Review: https://reviewboard.asterisk.org/r/4119/
Reported by: John Bigelow
patches:
  unregister-patch1.txt uploaded by John Bigelow (License 5091)
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Merged revisions 426923 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/13@426924 f38db490-d61c-443f-a65b-d21fe96a405b
pjsip: clarify tls cert and key file usage

A question arose as to whether a .pem file
could be provided in place of the .crt and
.key files in a PJSIP TLS configuration. I
tested this and discovered that although a
cert will be read from the pem file, a key
will not, and thus the priv_key_file entry
is still required. This update to the fine
documentation clarifies the option usage.

AST-1448 #close
Review: https://reviewboard.asterisk.org/r/4129/
Reported by: John Bigelow
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Merged revisions 426928 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/13@426930 f38db490-d61c-443f-a65b-d21fe96a405b
install init.d files on GNU/kFreeBSD

Review: https://reviewboard.asterisk.org/r/4118/
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Merged revisions 426926 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 426927 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 426933 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/13@426934 f38db490-d61c-443f-a65b-d21fe96a405b