Merged revisions 47690 via svnmerge from

Merged revisions 47690 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r47690 | kpfleming | 2006-11-15 14:01:22 -0600 (Wed, 15 Nov 2006) | 20 lines

Merged revisions 47686,47688-47689 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.2

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r47686 | kpfleming | 2006-11-15 13:42:05 -0600 (Wed, 15 Nov 2006) | 2 lines

clear the category's variable tail pointer as well when variables are detached from it

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r47688 | kpfleming | 2006-11-15 13:47:43 -0600 (Wed, 15 Nov 2006) | 2 lines

when appending a list of variable to a category, ensure the tail pointer points to the last variable in the list

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r47689 | kpfleming | 2006-11-15 13:58:46 -0600 (Wed, 15 Nov 2006) | 2 lines

when re-writing the config file, don't repeat the path if it hasn't changed

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@47691 65c4cc65-6c06-0410-ace0-fbb531ad65f3