6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

6755625: Add HttpURLConnection.setFixedLengthStreamingMode(long)
Reviewed-by: jccollet

6756771: com.sun.net.httpserver.HttpServer should handle POSTs larger than 2Gig
Summary: update implementation to use long instead of int
Reviewed-by: michaelm