ui-repolist: Add "section-sort" flag to control section sorting.

Flag which, when set to "1", will sort the sections on the repository
listing by name. Set this flag to "0" if the order in the cgitrc file
should be preserved. Default value: "1".

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

cgit.c

@@ -233,6 +233,8 @@ void config_cb(const char *name, const char *value)
 		ctx.cfg.section_from_path = atoi(value);
 	else if (!strcmp(name, "repository-sort"))
 		ctx.cfg.repository_sort = xstrdup(value);
+	else if (!strcmp(name, "section-sort"))
+		ctx.cfg.section_sort = atoi(value);
 	else if (!strcmp(name, "source-filter"))
 		ctx.cfg.source_filter = new_filter(value, SOURCE);
 	else if (!strcmp(name, "summary-log"))
@@ -361,6 +363,7 @@ static void prepare_context(struct cgit_context *ctx)
 	ctx->cfg.script_name = CGIT_SCRIPT_NAME;
 	ctx->cfg.section = "";
 	ctx->cfg.repository_sort = "name";
+	ctx->cfg.section_sort = 1;
 	ctx->cfg.summary_branches = 10;
 	ctx->cfg.summary_log = 10;
 	ctx->cfg.summary_tags = 10;