Zahl/mcmap — pull request #27 by andrewminer (2013-04-16 06:17:48+00:00)
Title: Add the ability to render MystCraft ages

Add the ability to render ages created by the [MystCraft](http://www.minecraftforum.net/topic/918541-151-mystcraft-0102/) mod. This adds a "-mystcraftage *n*" option which specifies the age to be rendered. It processes that parameter much the same way the "-nether" and "-end" parameters are handled.