Revision 330672

. update to version 7.2d;
. organize as master and slave ports;
. while I'm here: support stage.

PR:		ports/175590  [1]
		ports/176011  [2]
		ports/176716  [3]

Submitted by:	KATO Tsuguru <tkato432@yahoo.com>    [1]
		Vitaly Magerya <vmagerya@gmail.com>  [2]
		Hirohisa Yamaguchi <umq@ueo.co.jp>   [3]