app_meetme: compiler warning

Fixed a compiler warning (errors in 'dev-mode') given by gcc version 4.8.1.
The one in app_meetme involved the 'sizeof-pointer-memaccess'
(see: http://gcc.gnu.org/gcc-4.8/porting_to.html) warning. Fixed so
it would no longer issue a warning and can compile again in 'dev-mode'.

Review: https://reviewboard.asterisk.org/r/3098/
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Merged revisions 404742 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 404773 from http://svn.asterisk.org/svn/asterisk/branches/11
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git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@404782 f38db490-d61c-443f-a65b-d21fe96a405b
test_stasis.c: Fix ref leak in normal execution path.
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Merged revisions 404764 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@404783 f38db490-d61c-443f-a65b-d21fe96a405b
chan_dahdi: dahdi show channels slices PRI channel dnid on output

dahdi show channels output slices the callerid (which is dnid copied over on
PRI channels). If the channel naming structures look like:

 'DAHDI/i1/1408409XXXX-6'

then the output slices 1408409XXXX down to 1408409XXX. This patch just opens
it up to 15 chars so you can see the whole thing.

(closes issue ASTERISK-22918)
Reported by: outtolunc
Patches:
     svn_chan_dahdi.c.format12_15.diff.txt uploaded by outtolunc (license 5198)
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Merged revisions 404784 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@404787 f38db490-d61c-443f-a65b-d21fe96a405b