Trim all whitespace from titles and labels.

Bug: 20953160

Change-Id: I1610df5e445a4139522226f68fa6439926bc70c6
diff --git a/src/com/android/launcher3/FolderInfo.java b/src/com/android/launcher3/FolderInfo.java
index 80b1564..9675371 100644
--- a/src/com/android/launcher3/FolderInfo.java
+++ b/src/com/android/launcher3/FolderInfo.java
@@ -87,7 +87,7 @@
     }
 
     public void setTitle(CharSequence title) {
-        this.title = title;
+        this.title = Utilities.trim(title);
         for (int i = 0; i < listeners.size(); i++) {
             listeners.get(i).onTitleChanged(title);
         }