code and readme changes for preview version 0.2, multiple inputs are now allowed removing the need for concept of active balance (with collect transaction removed as no longer needed), ltc sell backers and backed ltc sell added, changes to the trade offer constrains and account management enabled us to remove the concept of spendable balance (whole balance can now be spent, at any time), coin amount and percentages are now displayed and accepted from user through lossless decimal fraction mechanism