Added support for changing font for show names (skinning)

Modified EPGWindow.py to allow custom font for shows names. 

This is done similar to the textcolor and focusedcolor, but uses a different control (105).

Skinning Info (script.pseudotv.EPG.xml):

<control type="button" id="105">
        <visible>false</visible>			
	<label>Medium</label><!--text font-->			
</control>