Merge remote-tracking branch 'origin/gh-pages' into gh-pages

Conflicts:
	dev-notes.md
	r4/fgx-crossfeed-r4.js
	r4/fgx-fgtracker-r4.js
	r4/fgx-mpserver15-r4.js
	r4/fgx-navaids-r4.js
	r4/fgx-plane-spotter-r4.html
update latest