add release note

HISTORY.md

@@ -0,0 +1,28 @@
+Dev 
+===
+
+Major Changes
+
+* Rewrite malloc hook , use `pthread_getspecific` instead of `__thread` to get current service handle.
+* Optimize global unique service query, rewrite `service_mgr` .
+* Add some snax api, snax.uniqueservice (etc.) , use independent protocol `PTYPE_SNAX` .
+* Add bootstrap lua script , remove some code in C .
+* Use a lua loader to load lua service code (and set the lua environment), remove some code in C.
+* Support preload a file before each lua serivce start.
+* Add datacenter serivce.
+* Add multicast api.
+
+v0.1.1 (2014-4-28)
+======
+
+Major Changes
+
+* socket channel reconnect should clear request queue.
+* socket close may block the coroutine.
+* jemalloc api may crash on macosx (disable jemalloc on macosx).
+
+v0.1.0 (2014-4-23)
+======
+
+First public version (2012-8-1)
+======