* add Windows CE support with Visual Studio 2005
(WM5.0,PocketPC 2003/2005, Smartphone)
* Fix memory leaks (not likely to happen).
* Fix buffer overrun in url.
* Modification of the Application Binary Interface (ABI)
to decrease number of allocations.
Changes: osip_message_t/osip_dialog_t/sdp_message_t/osip_fifo_t
* save route headers in the same order (CALLER or CALLER) in dialogs.
PR: 105164
Submitted by: Yi-Huan Chan <yhchan@csie.nctu.edu.tw>
Approved by: maintainer (me), tmclaugh (mentor,implicit)