https://github.com/ethereum/wiki/wiki/JavaScript-API#web3ethsendtransactionweb3.eth.sendTransaction(transactionObject [, callback])
Parameters
from: String - The address for the sending account. Uses the web3.eth.defaultAccount property, if not specified.
to: String - (optional) The destination address of the message, left undefined for a contract-creation transaction.
value: Number|String|BigNumber - (optional) The value transferred for the transaction in Wei, also the endowment if it's a contract-creation transaction.
gas: Number|String|BigNumber - (optional, default: To-Be-Determined) The amount of gas to use for the transaction (unused gas is refunded).
gasPrice: Number|String|BigNumber - (optional, default: To-Be-Determined) The price of gas for this transaction in wei, defaults to the mean network gas price.
data: String - (optional) Either a byte string containing the associated data of the message, or in the case of a contract-creation transaction, the initialisation code.nonce: Number - (optional) Integer of a nonce. This allows to overwrite your own pending transactions that use the same nonce.
eth.sendTransaction({from: eth.accounts[0], value: web3.toWei(1, 'ether'), to: '0x....', gas: 500000, data: web3.fromAscii('Up to 16 chars !')})
