Fees

Structure to avoid spam of huge states that are just confusing and
annoying. Flexible enough to allow them when trading would actually
justify such a contract.
Erased Doc

This doc is terrible, I am writing a good one from the ground up. Stay
tuned.
Clarified LMSR

Further improved formatting, and added a section explaining the
modularity/(marginal-preserving) property of the LMSR.