Added annotations to edited method

Removed "unused" annotation from a method used to convert hex string to color integer.

Author: wubydax

ColorPickerPreference/src/main/java/net/margaritov/preference/colorpicker/ColorPickerPreference.java

@@ -64,6 +64,11 @@ public ColorPickerPreference(Context context, AttributeSet attrs, int defStyle)
         init(context, attrs);
     }
 
+    /**Method edited by
+     * @author Anna Berkovitch
+     * added functionality to accept hex string as defaultValue
+     * and to properly persist resources reference string, such as @color/someColor
+     * previously persisted 0*/
     @Override
     protected Object onGetDefaultValue(TypedArray a, int index) {
         int colorInt;
@@ -225,7 +230,8 @@ public static String convertToARGB(int color) {
     }
 
     /**
-     * For custom purposes. Not used by ColorPickerPreference
+     * Method currently used by onGetDefaultValue method to
+     * convert hex string provided in android:defaultValue to color integer.
      *
      * @param color
      * @return A string representing the hex value of color,