gst.h: include the new gstprotection.h header
gst.h: include the new gstprotection.h header

https://bugzilla.gnome.org/show_bug.cgi?id=705991

mparis/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,mparis/gstreamer,centricular/gstreamer,krichter722/gstreamer,mparis/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,shelsonjava/gstreamer