(#1488590).
- Fixed server capability retrieval for "double" cases in capability
response, like "FOO FOO=bar".
+ - Various address book database backend modifications. Fixed invalid
+ error checks in insert() and delete() methods (checks caused PHP
+ warnings). Turned on Pear DB field case portability mode. Escaped SQL
+ wildcards in search() method. Handle nickname changes in modify()
+ method when new nickname is already in use. Made search expressions
+ case insensitive in search() method.
Version 1.5.1 (branched on 2006-02-12)
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