Return the bigram frequency if available.

This concludes the work on bug#6313806.
Don't submit it before the dictionaries are suitably amended.

Bug: 6313806
Change-Id: Icfea45bd52bb9d8cc68ba2266f80640e3942bb7f
diff --git a/java/res/values/config.xml b/java/res/values/config.xml
index a6fd22e..e20061d 100644
--- a/java/res/values/config.xml
+++ b/java/res/values/config.xml
@@ -75,9 +75,9 @@
         <item></item>
         <!-- Modest : Suggestion whose normalized score is greater than this value
              will be subject to auto-correction. -->
-        <item>0.22</item>
+        <item>0.185</item>
         <!-- Aggressive -->
-        <item>0.08</item>
+        <item>0.067</item>
         <!-- Very Aggressive : Suggestion whose normalized score is greater than this value
              will be subject to auto-correction. -->
         <item>0</item>