Updated changelog with changes for v1.0.15. Also did some minor formatting fixes to keep consistency.
Updated changelog with changes for v1.0.15. Also did some minor formatting fixes to keep consistency.

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