* boards/algebra_plus.xml.in: improved comments
	* boards/babymatch.xml.in: improved comments
	* boards/babyshapes.xml.in: improved comments
	* boards/click_on_letter.xml.in: improved comments
	* boards/clickgame.xml.in: improved comments
	* boards/enumerate.xml.in: improved comments
	* boards/sounds/pt/misc/gcompris_misc_pt.assetml.in: updated by J
	* boards/sounds/pt/misc/about.ogg: created by Jose Jorge
	* boards/sounds/pt/misc/back.ogg:  created by Jose Jorge
	* boards/sounds/pt/misc/configuration.ogg:  created by Jose Jorge
	* boards/sounds/pt/misc/congratulations.ogg: created by Jose Jorge