* fixes#522 remove mention of gas setting from eth_estimateGas
* fixes#522 clarify that gasLimit is irrelevant to estimation
* fixes#522 clarifications on estimation process
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
| **from** | Data, 20 bytes | Optional | Address from which transaction sent. |
| **to** | Data, 20 bytes | Required | Address to which transaction is directed. |
| **gas** | Quantity, Integer | Optional | Gas provided for the transaction execution. `eth_call` consumes zero gas, but this parameter may be needed by some executions. |
| **gasPrice** | Quantity, Integer | Optional | gasPrice used for each paid gas. |
| **value** | Quantity, Integer | Optional | Value sent with this transaction. |
| **data** | Data | Optional | Hash of the method signature and encoded parameters. For details see Ethereum Contract ABI. |
| **from** | Data, 20 bytes | Optional | Address from which transaction is sent. |
| **to** | Data, 20 bytes | Required | Address to which transaction is directed. |
| **gas** | Quantity, Integer | Optional | Gas provided for the transaction execution. `eth_call` consumes zero gas, but this parameter might be needed by some executions. `eth_estimateGas` ignores this value. |
| **gasPrice** | Quantity, Integer | Optional | Price used for each paid gas. |
| **value** | Quantity, Integer | Optional | Value sent with this transaction. |
| **data** | Data | Optional | Hash of the method signature and encoded parameters. For details, see [Ethereum Contract ABI](https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI). |