Refactor common code into a generator

Each of these modules had the exact same code with one string changed.  This moves all of this code into a common generator, then refactors all of the transforms modules to use it.
OK, if you envision exposing AR tunable parameters in Backbone views on the client I think that would be a great feature. OTOH if we do do that in the future then presumably all these views will need to be recreated not from a generator (because they will differ).  Or are all the tunable parameters simple floats/ints such that we could implement some sort of generic view generator that works for all of the transforms?