So I have been trying to figure this out for quite a while. Creating hair in MakeClothes is the same process as creating clothes. I created hair in Cycles as particles, and ended up with an incredible result. Unfortunately, MakeClothes requires a mesh and Blender Internal Render. I tried several different ways to turn particles into a mesh, but none created any less than 200,000 vertices. In addition, exporting these results to MakeHuman resulted in rendering flaws, including there being no coloration and the hair being visible from only some angles. So, step by step, how do I turn a Cycles particle system into MakeHuman hair?