sympy/sympy — pull request #1013 by smichr (2012-01-23 01:27:18+00:00)
Title: As coeff mul

Lots of small, mostly independent commits fixing several issues (and potential issues) related to the use of as_coeff_mul/Mul. I can submit these one at a time if necessary, but that's going to take a long time. For review purposes, each commit can be reviewed pretty much indepdently since I don't think I have any back-peddling in the work.