Results table auto-formatting: Use decimal places only as needed

It turns out that this is already implemented by ResultsTable
from IJ 1.49i onwards and we actually don't need to do anything
but impose it. This complements #9

src/main/java/Sholl_Analysis.java

@@ -186,7 +186,7 @@ public class Sholl_Analysis implements PlugIn, DialogListener {
 	@Override
 	public void run( final String arg) {
 
-		if (IJ.versionLessThan("1.49c")) return; // this is required for non-fiji users
+		if (IJ.versionLessThan("1.49i")) return; // this is required for non-fiji users
 
 		if (arg.equalsIgnoreCase("sample")) {
 			img = Sholl_Utils.displaySample();