Log Message:
Update pear-Mail_mimeDecode package to 1.5.5.

1.5.5		2010-12-02 03:45 UTC

Changelog:

Minor Bug fix release.

#17959 - Boundaries ending with non-word characters - patch by Alex Adriaanese
------ - ignore whitespace and trailing cr/lf in last section of split
------ - correct spacing on multi-line headers. now only striped for encoded \ 
data. (on previous line)