Modifying Makefile and sounds.xml to include new core 1.4.26 and extra 1.4.15
sound prompt releases, plus the new Japanese core sound prompts contributed
by QLOOG.

ASTERISK-23324
Reported by: Kevin McCoy
Tested by: Rusty Newton
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Merged revisions 422789 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 422790 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 422791 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 422883 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@422884 65c4cc65-6c06-0410-ace0-fbb531ad65f3