Do not clear an input script if we failed to sign it
Merge pull request #25 from plaprade/dont-empty-signatures

Do not clear an input script if we failed to sign it
Removed walletFile from constants
Removed walletFile from constants
Merge pull request #26 from plaprade/remove-constants

Remove constants
Adding MerkleBlock to the Message type
Merge pull request #27 from plaprade/add-merkleblock

Adding MerkleBlock to the Message type