Ensure "Token" covers all relevant projects

[paulbarclay]

To allow DeFi projects to function under this safe harbour, it's necessary to redefine the restriction on Token financial interests. Specifically, we need to be sure that a DAO-type organization can function, where decentralized users pool effort and/or capital. Limiting the restriction to centralized companies, partnerships, and funds is the cleanest change that would allow this. The restriction would still prevent a token being ownership of a hedge fund, but would now allow use cases such as Ethereum's Proof of Stake.

[paulbarclay]

This addresses related issues #4 and #12