* Merge from Debian testing. Remaining changes: - libxenstore3.0: Conflict and replaces libxen3. - libxen-dev: Conflict and replaces libxen3-dev. - xenstore-utils: Conflict and replaces libxen3. - xen-utils-4.1: Conflict and replaces libxen3, python-xen-3.3, and xen-utils-4.1. - Make sure the LDFLAGS value passed is suitable for use by ld rather than gcc. - Dropped: - debian/patches/upstream-23044:d4ca456c0c25 - debian/patches/upstream-23104:1976adbf2b80 - debian/patches/upstream-changeset-23146.patch - debian/patches/upstream-changeset-23147.patch - debian/patches/xen-pirq-resubmit-irq.patch