[balsa] ChangeLog: Document a commit

[Peter Bloomfield <peterb src gnome org>]

commit 6122f7cc56590c89e59f266f594f0fb308b5562b
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Mon Aug 13 10:45:33 2018 -0400

    ChangeLog: Document a commit
    
    Commit b821fb65cec529f52fee7757c870fb9ef131d653 was erased from
    the git log by a later merge--oops!

 ChangeLog | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
---
diff --git a/ChangeLog b/ChangeLog
index 40f7f9d0a..f741752e3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,23 @@
+2018-08-11  Albrecht Dreß  <albrecht dress arcor de>
+
+       Improve IMAP folder configuration
+       Commit b821fb65cec529f52fee7757c870fb9ef131d653 was erased from
+       the git log by a later merge--oops!
+
+       * src/folder-conf.c: simplify folder_conf_imap_sub_node()
+         which is now used only for modifying an existing folder,
+         not for creating a new one;
+         put the logic for the latter into folder_conf_add_imap_sub_cb().
+         Note that folder_conf_imap_sub_node() still needs some refactoring…
+       * src/mailbox-node.[ch]: replace empty items by separators in add_menu_entry();
+         export helper balsa_mailbox_node_is_imap()
+         indicating if a BalsaMailboxNode is on an IMAP server;
+         in balsa_mailbox_node_get_context_menu() remove the “Remote IMAP folder”
+         and show “Remote IMAP subfolder” for IMAP BalsaMailboxNodes only
+       * src/main-window.c: “Remote IMAP folder”, activate “Remote IMAP subfolder”
+         for selected IMAP BalsaMailboxNodes only
+       * ui/main-window.ui: remove “Remote IMAP folder” from the ui
+
 2018-07-24  Peter Bloomfield  <pbloomfield bellsouth net>
 
        * meson.build: Change the pkg-config test for enchant from