Blender Git Loki

This commit may need to be reversed, for some of the older compilers but
I'm guessing its safe.

Basically it fixes a warning about typedef usage.
Reading the docs on gcc-3.2 it says that classes that use a typedef
need to have the keyword "typename" infront of them according to the c++
standard. Currently it only produces a warning but it may be an
error later, so I figured why not fix it.

Kent