Added Khans Expanded Cube to draft cube list
<draftCube name="Sam Black's No Search Cube" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.SamBlacksCube"/>
<draftCube name="Timothee Simonot's Twisted Color Pie Cube" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.TimotheeSimonotsTwistedColorPieCube"/>
<draftCube name="MTGA Cube 2020 April" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.MTGACube2020April"/>
+ <draftCube name="MTGO Khans Expanded Cube" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.KhansExpandedCube"/>
<draftCube name="MTGO Cube March 2014" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.MTGOMarchCube2014"/>
<draftCube name="MTGO Legacy Cube" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.LegacyCube"/>
<draftCube name="MTGO Legacy Cube 2015 March" jar="mage-tournament-booster-draft.jar" className="mage.tournament.cubes.LegacyCubeMarch2015"/>
