Log Message:
Updated to latest release, 0.4.8. From doc/ChangeLog:

	* build: added support for Apple in cmake
	* debian: update package
	* aes: added AES (Advanced Encryption Standard) wrapper
	* hmac: added a stateful HMAC wrapper
	* http: added a HTTP client
	* ice: minor API improvements
	* msg: added a Generic message component library
	       (shared by SIP module and HTTP module)
	* sdp: added sdp_media_laddr() to get local transport address
	* sip: change struct sip_msg to use new struct msg_ctype
	       fixed a bug in parsing of Via headers
	* sipsess: added sipsess_set_close_headers() to set any additional
		   SIP headers for BYE or BYE-response
	* net: fixed a bug in net_rt_list() for darwin
	* websock: added WebSocket Protocol (RFC 6455)