* mu4e: restore the old update-buffer behaviour
* mu4e: fix faces in the mu4e-main
* mu4e: some improvements in the update-mail window behaviour (wip)
* mu4e: some more work on the updating process
* mu4e: centralize some of the fontification code; cleanup signature support
* mu4e: run mu4e-view-mode only when the marked-as-read message is received
* mu: initialize randomness in mu-cmd-server
* mu4e: don't error out if no empty lines are found
* mu4e: make sure the sent-hook is only defined as *local* in mu4e-compose
* mu4e: don't error out on parts without mime-type