New CustomSeekBar: allow to translate "Default" value string

Change-Id: I6575605bbb5246bb3a954ac39932855932489cac
diff --git a/src/com/bliss/support/preferences/CustomSeekBarPreference.java b/src/com/bliss/support/preferences/CustomSeekBarPreference.java
index 1bed0a6..cbdd59b 100644
--- a/src/com/bliss/support/preferences/CustomSeekBarPreference.java
+++ b/src/com/bliss/support/preferences/CustomSeekBarPreference.java
@@ -61,6 +61,10 @@
         if (id > 0) {
             mUnits = context.getResources().getString(id);
         }
+        id = a.getResourceId(R.styleable.CustomSeekBarPreference_defaultText, 0);
+        if (id > 0) {
+            mDefaultText = context.getResources().getString(id);
+        }
 
         try {
             String newInterval = attrs.getAttributeValue(SETTINGS_NS, "interval");