Don't import/export MED and LOCAL_PREF on external links.Added real comparison of BGP routes (inspired by the Cisco one).Default local preference and default MED are now settable.Defined filter keywords for all BGP attributes we know.
Int sets moved to core. It is now possible to have variable of type clist.
as_path_match moved to a-path.c
Path_getlen moved to nest and length was made callable from filters.
Printing of AS paths and community sets.
Created nest/a-path.c and a-set.c which should contain general operationson AS paths and community sets.
Moved as_path_prepend() there.
Pavel, please move the other functions as well.