prepare changelog for 1.0.16
prepare changelog for 1.0.16

Sylaps/easyrtc,Sylaps/easyrtc,bgawande/easyrtc,Sylaps/easyrtc,ash24mish/easyrtc,bgawande/easyrtc,priologic/easyrtc,Hocalwire/easyrtc,ash24mish/easyrtc,hthetiot/easyrtc,hthetiot/easyrtc,Hocalwire/easyrtc,bgawande/easyrtc,ash24mish/easyrtc,priologic/easyrtc,hthetiot/easyrtc,Hocalwire/easyrtc,ash24mish/easyrtc,Hocalwire/easyrtc,priologic/easyrtc,priologic/easyrtc