Adding extra logging to try and catch cases where Market button does not work.

Change-Id: I09fde1daf3afc1921ad1cc48358ee6c55df4ab7a
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 6464a7d..ee540f8 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -1842,6 +1842,8 @@
     public void onClickAppMarketButton(View v) {
         if (mAppMarketIntent != null) {
             startActivitySafely(mAppMarketIntent, "app market");
+        } else {
+            Log.e(TAG, "Invalid app market intent.");
         }
     }