Adding keyboard support to folders and fixing renaming rough edges

Change-Id: I62e1a5699e4c7e8d53f5f7d6331a854270a83aa1
diff --git a/src/com/android/launcher2/FolderInfo.java b/src/com/android/launcher2/FolderInfo.java
index 3ae31d2..f597076 100644
--- a/src/com/android/launcher2/FolderInfo.java
+++ b/src/com/android/launcher2/FolderInfo.java
@@ -56,6 +56,7 @@
         for (int i = 0; i < listeners.size(); i++) {
             listeners.get(i).onAdd(item);
         }
+        itemsChanged();
     }
 
     /**
@@ -68,6 +69,7 @@
         for (int i = 0; i < listeners.size(); i++) {
             listeners.get(i).onRemove(item);
         }
+        itemsChanged();
     }
 
     public void setTitle(CharSequence title) {