Currently, in multi-account mode, the mu4e layer guesses which account
to use to reply a message by its "maildir". However, some messages may
be forwarded and may need to use the original email address to reply.
This commit detects whether such an email address is defined in
"mu4e-account-alist", and uses that to do the replying if possible.
This commit deactivates account selection and switching support if the
account list isn't defined. We also don't need the follow-up action of
undoing the account selection changes, so we can just skip both of the
hooks.
This is useful for users who only have 1 account - they don't need the
helm popup to select which account to use. They can just define the
variables outside of the `mu4e-account-list`.
- Clarify installation instructions
- Bring README in line with conventions
- Create layer variable for installation path
- Move mu4e-account-alist to config.el
- Move extensions.el to packages.el
- Define mu4e as built-in and not local
- Add commands to ensure mu4e is deferred
Helm seems to treat "!" specially in pattern matching, so having a ! in
the pattern string when traversing directories is problematic. This
change fixes#2737, because as far as I can tell "+" has no special
meaning in a helm pattern.
Of course, we can choose a different character, but I'm fond of "+" as
representing "more layers here".
