Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20150326' into staging migration/next for 20150326 # gpg: Signature made Thu Mar 26 14:31:55 2015 GMT using RSA key ID 5872D723 # gpg: Can't check signature: public key not found * remotes/juanquintela/tags/migration/20150326: migration: remove last_sent_block from save_page_header rdma: Fix cleanup in error paths Avoid crashing on multiple -incoming Signed-off-by: Peter Maydell <peter.maydell@linaro.org>