BarSkin and BulletChartSkin draw incorrectly when min value is not zero

[adrianromero]

Bar skin always draws does not set the origin of the arc bar in the min value but in the zero value. The problem is in the following code line:

https://github.com/HanSolo/Medusa/blob/master/src/main/java/eu/hansolo/medusa/skins/BarSkin.java#L265

The following code line fixes the issue:

double angle = (gauge.getCurrentValue() - gauge.getMinValue()) * angleStep;

[adrianromero]

The same issue with BulletChartSkin. Here the code line with the issue:

https://github.com/HanSolo/Medusa/blob/master/src/main/java/eu/hansolo/medusa/skins/BulletChartSkin.java#L331

And here one possible way to fix it:

double currentValue = gauge.getCurrentValue() - gauge.getMinValue();