No longer using typedef for base class, so that doxygen doesn't lose track of the hierarchy. Added class docs.
No longer using typedef for base class, so that doxygen doesn't lose track of
the hierarchy. Added class docs.


danieldresser/cortex,danieldresser/cortex,davidsminor/cortex,lento/cortex,lento/cortex,davidsminor/cortex,goddardl/cortex,appleseedhq/cortex,danieldresser/cortex,hradec/cortex,goddardl/cortex,appleseedhq/cortex,davidsminor/cortex,hradec/cortex,goddardl/cortex,danieldresser/cortex,davidsminor/cortex,hradec/cortex,lento/cortex,appleseedhq/cortex