--enable-debug builds static only, Gisle fixed a memory leak and more

  Changelog for the c-ares project

* July 24

- Made the lib get built static only if --enable-debug is used.

- Gisle Vanem fixed:

  Basically in loops like handle_errors(), 'query->next' was assigned a local

  variable and then query was referenced after the memory was freed by

  next_server(). I've changed that so next_server() and end_query() returns

  the next query. So callers should use this ret-value.

  The next problem was that 'server->tcp_buffer_pos' had a random value at

  entry to 1st recv() (luckily causing Winsock to return ENOBUFS).

  I've also added a ares_writev() for Windows to streamline the code a bit

  more.

* July 20

- Fixed a few variable return types for some system calls. Made configure

  check for ssize_t to make it possible to use that when receiving the send()