Assets 2
New JSON handling has been added for the following wallet commands:

getmasterpubkey has been modified to take an account argument.

The new daemon command livetickets has been added. This command dumps
the hashes for all the live tickets in the live ticket stake database.

The new daemon command existsaddresses has been added. This command
takes a JSON array of addresses represented as strings and returns a
bitset indicating whether or not the addresses are used on the block
chain or mempool.