Fixed solaris compilation warning and ignore case at host parameter.

- Suppress compilation warning in solaris caused by a comma at the end of
    the last value.
  - Ignore case at host parameter in config file

Signed-off-by: Ruben Garcia Azuara <rubenga@tid.es>
Signed-off-by: Andreas Schneider <mail@cynapses.org>

include/libssh/misc.h

@@ -50,6 +50,7 @@ struct ssh_iterator *ssh_list_get_iterator(const struct ssh_list *list);
 int ssh_list_append(struct ssh_list *list, const void *data);
 int ssh_list_prepend(struct ssh_list *list, const void *data);
 void ssh_list_remove(struct ssh_list *list, struct ssh_iterator *iterator);
+char *ssh_lowercase(const char* str);
 
 const void *_ssh_list_pop_head(struct ssh_list *list);