mu-sexp-convert: Fix conversion of elisp times.

Previously, the first element was used where the second should have been.

In essence, whereas the algorithm is T[0]<<16 & T[1], the code was previously performing T[0]<<16 & T[0].

The timestamp produced was therefore inaccurate by up to about 18 hours.
Merge pull request #137 from codemac/smtp

* mu4e: spelling fix for smtp-mail-queue-dir
* mu4e/mu4e.texi: add the Tips & Tricks chapter contributed by Joost Kremers
* merge branch 'master' of github.com:djcb/mu
* cosmetic
* mu4e: small doc update
* mu4e: make sure to define mu4e-view-mark-for-something (using the macro)
* mu: update unit test (after more eager address matching)
* mu4e: auto scroll down in the mail fetch window (thanks to chrisklaiber)
mu4e: small doc update
mu4e: propertize the colon in view header keys
mu4e: propertize parens around attachment size in message view
mu4e: add custom variable for list of visible flags to display in headers view
Merge pull request #141 from abend/master

* some visual improvements
* revert "mu4e: add custom variable for list of visible flags to display in headers view"

This reverts commit 9944a4fd62cb96c0ad350e991ea62fb2889703cd.
Merge pull request #147 from mmirate/patch-1

* mu-sexp-convert: Fix conversion of elisp times.
* mu4e: update doc for mu4e-create-maildir-maybe
* mu4e: don't try to select nil window when updating mail
* mu: fix detection of urls with diacritics
* mu4e: handle empty contact lists