Log Message:
Update fetchyahoo to 2.11.0.

v2.11.0 08/28/07
* fix "can't find message" error with new Yahoo internals
* replace html character entities in msg summaries

v2.10.9 07/28/07
* add safe-download option (Thanks Riley)
* add support for .dk Danish Yahoo (thanks Sune Jorgensen)
* better parsing of e-mail addresses in From_ line (thanks Eric Peterson)
* patch for retrieving multiple folders (thanks sniper11)

v2.10.8 06/08/07
* fix "can't find message" bug

v2.10.7 02/24/07
* fix an off-by-one bug in marking messages unread
* fix bug with msgs wrongly marked read (thanks Paul Marcos)
* fix EmptyTrashBefore / EmptyBulk bug (thanks Sridhar Boovaraghavan)
* fix quota parsing,but only when emptytrashbefore or emptybulk is chosen :(
* fix parsing of sender when they are in contact list
* mark messages unread in spool if they are (thanks Martin Fick)
* fix for new de no-messages message (thanks Ulrich Brandle)