[jan] Get version list from pear.horde.org when checking for updates.

Side-effect: includes versions for all packages.
[jan] Use PEAR package information to retrieve packages names in Horde_Core_Db_Migration.
Fix order.
If we have an actionID, don't take the imageId into account when building breadcrumbs.
cs
Merge branch 'master' into horde_5_1