[Icon request] Marathon, Marathon 2: Durandal, Marathon Infinity

Note: While these 3 games were originally only released for the Mac system, they have since been ported to Windows, Mac and Linux and are available to play on all platforms through the Bungie-supported open source engine "Aleph One". Therefore, I believe they are viable for inclusion in this icon set.

• App Name: Marathon
• Icon Name: marathon
• Description: Marathon is a 1994 FPS developed by Bungie Software.
• Original Icon:
• App Name: Marathon 2: Durandal
• Icon Name: marathon-2 (or marathon-2-durandal)
• Description: Marathon 2: Durandal is the sequel to the 1994 game Marathon by Bungie.
• Original Icon:
• App Name: Marathon Infinity
• Icon Name: marathon-infinity
• Description: Marathon Infinity is the final game in Bungie's Marathon trilogy.
• Original Icon: