An ERC721 Token with wholesome memes

Provides a standard ERC721 token interface plus DSAuth-protected mint and burn functions.

Inspired by dapphub's ds-token

credit NFT at an address whilst simultaniously increasing user's balanceOf (requires auth)

debit NFT at an address whilst simultaniously decreasing user's balanceOf (requires auth)

safe transfer a nft from msg.sender to a given address (requires approval)

safe transfer a nft from a given address to msg.sender (requires approval)

safe transfer a nft from a given src address to a given dst address (requires approval)