Complete the migration of sympy to python-r1 by mostly copying main tree dependencies. That includes migration to vitual/python-imaging. Note that the main tree is in better shape than it was in regards to mpmath but still slightly incomplete.

Package-Manager: portage-2.2.0_alpha180
More aligne,ent with main tree. python 3.2 will have to be further checked for mpmath inclusion.

Package-Manager: portage-2.2.0_alpha180
Provide useflags that allow the continued use of imaging over pillow