Sync with 1.7.6.6

* maint-1.7.8:
  Git 1.7.6.6
  imap-send: remove dead code

Documentation/git.txt

@@ -69,9 +69,10 @@ Documentation for older releases are available here:
   link:RelNotes/1.7.7.1.txt[1.7.7.1],
   link:RelNotes/1.7.7.txt[1.7.7].
 
-* link:v1.7.6.5/git.html[documentation for release 1.7.6.5]
+* link:v1.7.6.6/git.html[documentation for release 1.7.6.6]
 
 * release notes for
+  link:RelNotes/1.7.6.6.txt[1.7.6.6],
   link:RelNotes/1.7.6.5.txt[1.7.6.5],
   link:RelNotes/1.7.6.4.txt[1.7.6.4],
   link:RelNotes/1.7.6.3.txt[1.7.6.3],

imap-send.c

@@ -42,28 +42,6 @@ struct store_conf {
 	unsigned trash_remote_new:1, trash_only_new:1;
 };
 
-struct string_list {
-	struct string_list *next;
-	char string[1];
-};
-
-struct channel_conf {
-	struct channel_conf *next;
-	char *name;
-	struct store_conf *master, *slave;
-	char *master_name, *slave_name;
-	char *sync_state;
-	struct string_list *patterns;
-	int mops, sops;
-	unsigned max_messages; /* for slave only */
-};
-
-struct group_conf {
-	struct group_conf *next;
-	char *name;
-	struct string_list *channels;
-};
-
 /* For message->status */
 #define M_RECENT       (1<<0) /* unsyncable flag; maildir_* depend on this being 1<<0 */
 #define M_DEAD         (1<<1) /* expunged */
@@ -71,7 +49,6 @@ struct group_conf {
 
 struct message {
 	struct message *next;
-	/* struct string_list *keywords; */
 	size_t size; /* zero implies "not fetched" */
 	int uid;
 	unsigned char flags, status;