message: Change unti from BTC to BTG
diff: @@ -24,7 +24,7 @@ class AmountSpinBox: public QAbstractSpinBox
  public:
  explicit AmountSpinBox(QWidget *parent):
  QAbstractSpinBox(parent),
  - currentUnit(BitcoinUnits::BTC),
  + currentUnit(BitcoinUnits::BTG),
  singleStep(100000) // satoshis
  {
  setAlignment(Qt::AlignRight);
  @@ -99,7 +99,7 @@ public:
  const QFontMetrics fm(fontMetrics());
  int h = lineEdit()->minimumSizeHint().height();
  - int w = fm.width(BitcoinUnits::format(BitcoinUnits::BTC, BitcoinUnits::maxMoney(), false, BitcoinUnits::separatorAlways));
  + int w = fm.width(BitcoinUnits::format(BitcoinUnits::BTG, BitcoinUnits::maxMoney(), false, BitcoinUnits::separatorAlways));
  w += 2; // cursor blinking space
  QStyleOptionSpinBox opt;
  