Support for PUBLISH (RFC 3903):
- API BREAK: pjsua_pres_create_uac() API CHANGED!! Added
  options in the function, to allow creating SUBSCRIBE without
  ";id=" parameter in the Event header.
- the generic event publication in pjsip-simple/publish.[hc]
- split PIDF and X-PIDF body generation and parsing into
  pjsip-simple/presence_body.c.
- allow NULL in module parameter in pjsip_endpt_add_capability()
- added "--publish" option in PJSUA.
- by default, PJSUA-LIB will not add ";id=" parameter in Event
  header in the SUBSCRIBE request since lots of server and
  user agents don't support this correctly.
- Set version to 0.5.7.6.



git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@685 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip/include/pjsip_simple.h b/pjsip/include/pjsip_simple.h
index 97af4bc..0230426 100644
--- a/pjsip/include/pjsip_simple.h
+++ b/pjsip/include/pjsip_simple.h
@@ -38,6 +38,7 @@
 #include <pjsip-simple/iscomposing.h>
 #include <pjsip-simple/presence.h>
 #include <pjsip-simple/pidf.h>
+#include <pjsip-simple/publish.h>
 #include <pjsip-simple/xpidf.h>
 
 #endif	/* __PJSIP_SIMPLE_H__ */