Revert "increase bottom spaces to fit IT days of week Fixes #36"

This reverts commit 2beb03c.

Author: glynhudson

app/src/main/java/org/emoncms/myapps/chart/DailyBarChart.java

@@ -156,7 +156,7 @@ private void setFormatting() {
         barChart.getDescription().setEnabled(false);
         barChart.setNoDataText("");
         barChart.setTouchEnabled(false);
-        barChart.setExtraBottomOffset(4);
+        barChart.setExtraBottomOffset(2);
 
         XAxis xAxis2 = barChart.getXAxis();
         xAxis2.setPosition(XAxis.XAxisPosition.BOTTOM);