Fixed a small issue when building with scons on windows. If you have another version of mingw in PATH it would use that one instead. Also updated the a couple SWIG interfaces to handle simple output parameters as described in ticket 340.

<HBox opaque='1'>
	<Label name="Title" text="Rio de hola - FIFE 0.3.0"/>
	<Button name="quitButton" text="Quit"/>
	<Button name="aboutButton" text="About"/>
	<Button name="optionsButton" text="Options"/>
</HBox>