Cannot read property 'length' of undefined if amount is not a float.

[bitt-john]

https://github.com/Colored-Coins/colored-coins-sdk/blob/0e9c8149051585fa9a78ed24df5d7203a12af0e8/lib/full_node.js#L23-L33

Sent 1 bitcoin and received this error because index at 1 was undefined.

 var decimal = parts[1]