- Changed calling convention of delete_list_member() & delete_list_admin()
  - delete_list_*() may report error via "stash" when the email doesn't exist.

Now Sympa::List::add_list_member and Sympa::List::add_list_admin use stash.

  - According to the proposal on #90, "intern" level shouldn't be used for
    malformed input by users/clients: "user" level should be used.

Updating source texts according to fixes on en_US catalog

Updating source texts according to fixes on en_US catalog

* review: Won't process sync_include in advance so that processing will be faster.

* Refactoring. Sympa::List::on_the_fly_sync_include() was removed. Instead, "include" request handler had "delay" option.

* Remove unused "last_sync" cache entries.  "last_change" entries remain.

* sync_include will no longer be invoked during Sympa::List->new():
  - No owner defined in a list is no longer treated as error_config.
  - Instead, if no owner defined,
     - If possible, discard incoming message and send back DSN to original sender,
     - or, notifications to owners will be redirected to listmaster(s).

* Refactoring: Remove unused functions

* Small refactoring: mail_tt2/listeditor_notification.tt2 is no longer used.

* Clarify log messages and DSN about undefined owner/editor/listmaster

Updating source texts according to fixes on en_US catalog

i.e. users not decided to delete, update nor keep.

even if one or more of data sources failed inclusion.

WWSympa: edit_list: Now inclusion will no longer be updated immediately, even if parameters on data sources were changed.
Instead, a message telling that inclusion will be updated soon (in an hour or so) is shown.

family_signoff action no longer does use one-time ticket.

— Add prohibited_listnames setting (comma-separated list, with ability
to use a wildcard)
— Add prohibited_listnames_regex setting

The settings are cumulative. You can use one or the other or both.

May fix #672

Updating source texts according to fixes on en_US catalog

  - Use "[% string | loc %]" instead of "[%|loc%]string[%END%]".
  - Use a filter "mailbox".

Updating source texts according to fixes on en_US catalog

Only from web interface for now.

Even if web interface was disabled (wwsympa_url parameter was unset), mail URL link was not shown in confirmation requests for subscribe/unsubscribe actions.
Fixed by replacing test on an unassigned variable user_interfaces with test on conf.wwsympa_url.

Various places in both documentation and default emails to admins/moderators
use he/him/his to refer to generic users of unknown gender. This commit
changes all generic uses of male pronouns to use singular they/them/their.
It also changes "his/her" to "their", but leaves "he or she" unchanged due
to less trivial conjugation issues.  NEWS, AUTHORS.md, and OChangeLog are
unchanged.

- Won't keep track of "referer" by parameters in forms: Use session variable "redirect_url" instead.
- web_tt2/loginrequest.tt2 was deprecated: web_tt2/login.tt2 will be used.
- Several other fixups.

When an other user (or anonymous user on web interface) requested subscribing/unsubscribing, if target user already subscribed / not yet subscribed to the list, they will be informed someone requested action while no actions will be taken.  Also, fake response will be sent to requester to prevent sniffing users.

Updating source texts according to fixes on en_US catalog