Additional Timestamps for Lat Lon

1) Implement additional timestamps to remember when a new Lat/Lon value
is generated.

2) Increase callsign[] character array to 16 chars  to make it long word
aligned.

3) Change some more comments from /* to //
Merge remote-tracking branch 'upstream/master'
* Splitted gmap.html-file to multiple files
  gmap.html, script.js and style.css
* Made changes accordingly to dump1090.c-file
* There are no security measures at web sever so be cautious!

	new file:   public_html/gmap.html
	new file:   public_html/script.js
	new file:   public_html/style.css
	modified:   dump1090.c
	deleted:    gmap.html