Bug 17295 Formating pref page: remove the icons in the tabs
The icons add minimal value and we should remove them.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CodeFormatterPreferencePage.java
ICodeFormatter formatter= ToolFactory.createDefaultCodeFormatter(fWorkingValues);
		fPreviewDocument.set(formatter.format(fPreviewText, 0, null, "\n")); 
	}	
	
	private void updateControls() {
		
		for (int i= fCheckBoxes.size() - 1; i >= 0; i--) {
			Button curr= (Button) fCheckBoxes.get(i);
			ControlData data= (ControlData) curr.getData();
					
			String currValue= (String) fWorkingValues.get(data.getKey());	
			curr.setSelection(data.getSelection(currValue) == 0);			
		}
		for (int i= fTextBoxes.size() - 1; i >= 0; i--) {
			Text curr= (Text) fTextBoxes.get(i);
			String key= (String) curr.getData();		
			String currValue= (String) fWorkingValues.get(key);
			curr.setText(currValue);
		}
	}
	
	private IStatus validatePositiveNumber(String number) {
		StatusInfo status= new StatusInfo();
		if (number.length() == 0) {
			status.setError(JavaUIMessages.getString("CodeFormatterPreferencePage.empty_input")); 
		} else {
			try {
				int value= Integer.parseInt(number);
				if (value < 0) {
					status.setError(JavaUIMessages.getFormattedString("CodeFormatterPreferencePage.invalid_input", number));