bucket: Fix scheme ref leak in __ast_bucket_scheme_register().
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Merged revisions 402944 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@402945 f38db490-d61c-443f-a65b-d21fe96a405b
voicemail: Fixup some doxygen comments.
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Merged revisions 402956 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@402957 f38db490-d61c-443f-a65b-d21fe96a405b