Fix for when a stored contact's name field is empty.

Display # instead of + in the avatar.

Closes #3141
// FREEBIE

src/org/thoughtcrime/securesms/contacts/ContactPhotoFactory.java

@@ -62,7 +62,7 @@ public class ContactPhotoFactory {
                          .height(targetSize)
                          .endConfig()
                          .buildRound(String.valueOf(name.charAt(0)),
-                                                 COLOR_GENERATOR.getColor(name));
+                                     COLOR_GENERATOR.getColor(name));
     }
 
     synchronized (defaultPhotoLock) {

src/org/thoughtcrime/securesms/recipients/RecipientProvider.java

@@ -133,9 +133,10 @@ public class RecipientProvider {
     try {
       if (cursor != null && cursor.moveToFirst()) {
         Uri      contactUri   = Contacts.getLookupUri(cursor.getLong(2), cursor.getString(1));
+        String   name         = cursor.getString(3).equals(cursor.getString(0)) ? null : cursor.getString(0);
         Drawable contactPhoto = ContactPhotoFactory.getContactPhoto(context,
-                                                                    Uri.withAppendedPath(Contacts.CONTENT_URI, cursor.getLong(2)+""),
-                                                                    cursor.getString(0));
+                                                                    Uri.withAppendedPath(Contacts.CONTENT_URI, cursor.getLong(2) + ""),
+                                                                    name);
         return new RecipientDetails(cursor.getString(0), cursor.getString(3), contactUri, contactPhoto);
       }
     } finally {