Fix links
Revert "Fix links"

This reverts commit 1af205721e13864cca96a42b2b6171152b54d2af.
Fix links correctly.
explode() -> implode()
PEAR can only handle one extends tag
[mms] Add Horde_ListHeaders#headers().
Horde_Mime_Headers#listHeaders() is deprecated
[jan] Use orginally requested time zone instead of alias in TZID.
[jan] Don't create transitions that overlap.
[jan] Fix missing time of day in DTSTART and UNTIL properties.
[jan] Make BYMONTHDAY property as short as possible.
[jan] Fix broken offsets during first zone rules.
Fix and update test fixture.
Add test for America/Los_Angeles.
Merge branch 'master' into turba_4_2