* Allow `Script#add` to add a Script causing concatenation of opcodes * Add `Script#equals` to compare scripts * Add `Script#fromAddress` * Drop `_payTo` methods * Add `Script.buildP2SHMultisigIn` Greatly simplifying the internal transaction object
* Refactor transaction into a different subfolder * Added a lot of tests for sighash and transaction serialization (from reddit's and Ryan X. Charles' `fullnode`) * Drop "only" from sighash tests and consolidate logs