First init: the origin version
First init: the origin version
Message fix:
==================================================================
	Add some jugement to send the right INVITE BYE and NOTIFY message
Compatible fix:
==================================================================
	Delete the BYE method jugement code.So that the dev_app will
	parse the bye xml message.Thus we can bye the video invite and
	audio invite seperatly.
Sipcall fix:deal with the speech and cancel request
==================================================================
	Edit Sip.app:
		1.Add a pjsip_rx_data point to store the cancel information
		2.Add some judgement
		3.Delete the while loop,because maybe we have to wait a long
		time for the response.
Merge branch 'sipcall'

Conflicts:
	README.md
	Sip.cpp
	Socket.cpp
	main.cpp
	whz_make.sh