* mu-flags: add MU_FLAG_LIST, clean-up code a bit
* mu-msg-file: set the MU_FLAG_LIST flag, if the message looks like an ML-message
* mu-mgs-store: support the MU_FLAG_LIST flag
* mu-str: fix a leak
* cosmetic
* document the new flag:list
* mu4e: update documentation
* mu4e: do a better job of trying to show images (without delay)
* mu4e: update docs
* mu4e: make sure to clear the 'loading' buffer; fixes issue #170
* typo
* mu: unbreak unit test after flag changes (fixes #247)
* mu4e: when replying to messages written by self, keep the same to:/cc:
* mu4e: prefix thread levels with a single space (rather than two)
* mu4e: complete the new reply-to-your-own-messages behavior + documentation
* cleanup: drop gmime-2.4 support
* guile: some update for the output format
* mu: some improvement in script handling
* cosmetics
* mu4e: add variable mu4e-hide-index-messages