UTXO: misc doc and code cleanups
UTXO: misc doc and code cleanups

GroestlCoin/groestlcoinj,schildbach/bitcoinj,HashEngineering/groestlcoinj,HashEngineering/groestlcoinj,VishalRao/bitcoinj,nikileshsa/bitcoinj,GroestlCoin/groestlcoinj,stonecoldpat/bitcoinj,jdojff/bitcoinj,akonring/bitcoinj_generous,stonecoldpat/bitcoinj,patricklodder/bitcoinj,tjth/bitcoinj-lotterycoin,peterdettman/bitcoinj,patricklodder/bitcoinj,kurtwalker/bitcoinj,peacekeeper/bitcoinj,GroestlCoin/groestlcoinj,paulminer/bitcoinj,imzhuli/bitcoinj,designsters/android-fork-bitcoinj,HashEngineering/darkcoinj,langerhans/dogecoinj-new,MrDunne/bitcoinj,peterdettman/bitcoinj,bitsquare/bitcoinj,Enigmachine/btcjwork2,HashEngineering/dashj,HashEngineering/groestlcoinj,tangyves/bitcoinj,cpacia/bitcoinj,dalbelap/bitcoinj,therightwaystudio/fork_bitcoinj,HashEngineering/digitalcoinj,jdojff/bitcoinj,tjth/bitcoinj-lotterycoin,you21979/bitcoinj,marctrem/bitcoinj,tjth/bitcoinj-lotterycoin,natzei/bitcoinj,cpacia/bitcoinj,greenaddress/bitcoinj,HashEngineering/dashj,HashEngineering/digitalcoinj,HashEngineering/darkcoinj,oscarguindzberg/bitcoinj,strawpay/bitcoinj,HashEngineering/digitalcoinj,HashEngineering/darkcoinj,HashEngineering/dashj,kurtwalker/bitcoinj,tangyves/bitcoinj,dcw312/bitcoinj,jdojff/bitcoinj,patricklodder/bitcoinj,HashEngineering/dashj,you21979/bitcoinj,dexX7/bitcoinj,bitcoinj/bitcoinj,stonecoldpat/bitcoinj,rnicoll/bitcoinj,yenliangl/bitcoinj,janko33bd/bitcoinj,tangyves/bitcoinj,szdx/bitcoinj,bitcoinj/bitcoinj,framewr/bitcoinj,rootstock/bitcoinj,yenliangl/bitcoinj,janko33bd/bitcoinj,you21979/bitcoinj,kurtwalker/bitcoinj,natzei/bitcoinj,oscarguindzberg/bitcoinj,cpacia/bitcoinj,kmels/bitcoinj,kmels/bitcoinj,schildbach/bitcoinj,langerhans/bitcoinj-alice-hd,blockchain/bitcoinj