According to https://bitcoinfees.21.co/, it's currently only possible to have your transaction scheduled within the very next block by paying a fee of at least 1.2 mBTC per KB, but the current maximum is set to only 1.0 mBTC per KB.
This PR bumps up the maximum to 2.0 mBTC per KB, as well as fixing up some of the comments.
According to https://bitcoinfees.21.co/, it's currently only possible to have your transaction scheduled within the very next block by paying a fee of at least 1.2 mBTC per KB, but the current maximum is set to only 1.0 mBTC per KB.
This PR bumps up the maximum to 2.0 mBTC per KB, as well as fixing up some of the comments.