Release Candidates 3.3.2 and 3.4.1

From Keir:
New release candidates are tagged:
http://xenbits.xensource.com/xen-3.3-testing.hg tagged 3.3.2-rc3 http://xenbits.xensource.com/xen-3.4-testing.hg tagged 3.4.1-rc4
Please test! I hope to release later this week.