bookmarks: allow existing remote bookmarks to become heads when pushing

util: subclass deque for Python 2.4 backwards compatibility It turns out that Python 2.4's deque type is lacking a remove method. We can't implement remove in terms of find, because it doesn't have find either.

merge with stable

Added signature for changeset 85a358df5bbb

Added tag 2.2.2 for changeset 85a358df5bbb

localrepo: move filecache clearing into invalidate Moving from self.destroy to _rollback fixed rollback fixed rollback but broke mq. Move it lower rather than sideways.

strip: move bookmark deletion before strip to deal with filecache invalidation

merge with stable

merge with i18n

i18n-pt_BR: synchronized with 2a0efa1112ac