TransactionSignature serialization
Created TestNetParams
Minor ScriptBuilder changes
minor Address improvements
Added output signing (Tx.addSignedInput())
Corrected accidental auto-format…

I can't even find an auto-format function in the Dart Editor…
Added skipCheck flag to StandardScript.convert() constructor

This allows to check for matching type first and then converting without doing an additional check.
minor changes
Completed KeyCrypterScrypt implementation