function returning revision numbers for user selected components

[emuller]

A useful feature for simulation accounting would be to provide a function which accepts a tuple of strings or modules and returns a ParameterSet containing unique revision numbers (hg, svn, etc.) such that these can be serialized along with, for example, simulation results.

Such a function and its widespread use would be a start towards reproducibility wrt underlying software versions.

Perhaps this could be the start of an "accounting" module