update release notes
update release notes

Change the mail addresses to the freedesktop ones

ensonic/gstreamer,shelsonjava/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,Lachann/gstreamer,surround-io/gstreamer,mparis/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,surround-io/gstreamer,centricular/gstreamer,collects/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,centricular/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,lubosz/gstreamer,jpxiong/gstreamer,jpakkane/gstreamer,krieger-od/gstreamer,collects/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer,Lachann/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,krichter722/gstreamer,krieger-od/gstreamer,mparis/gstreamer,mparis/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,Lachann/gstreamer,centricular/gstreamer,Lachann/gstreamer,shelsonjava/gstreamer,lovebug356/gstreamer,krieger-od/gstreamer,jpakkane/gstreamer,justinjoy/gstreamer,surround-io/gstreamer,cablelabs/gstreamer,jpakkane/gstreamer,jpxiong/gstreamer,lubosz/gstreamer,cfoch/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,Lachann/gstreamer,surround-io/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,ensonic/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,collects/gstreamer,jpakkane/gstreamer,collects/gstreamer,krichter722/gstreamer,lovebug356/gstreamer,jpxiong/gstreamer,cablelabs/gstreamer,collects/gstreamer,lovebug356/gstreamer,lubosz/gstreamer,ensonic/gstreamer,cfoch/gstreamer,StreamUtils/gstreamer,justinjoy/gstreamer,mparis/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,cablelabs/gstreamer,mparis/gstreamer,jpakkane/gstreamer,cfoch/gstreamer,ensonic/gstreamer