Rewrap self.tr and fix a few bugs

nw/core/tree.py

@@ -24,14 +24,14 @@ You should have received a copy of the GNU General Public License
 along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 
-from functools import partial
 import nw
 import logging
 import os
 
+from time import time
 from lxml import etree
 from hashlib import sha256
-from time import time
+from functools import partial
 
 from PyQt5.QtCore import QCoreApplication
 
@@ -82,7 +82,8 @@ class NWTree():
 
         self._handleSeed  = None  # Used for generating handles for testing
 
-        self.tr = partial(QCoreApplication.translate, self.__class__.__name__)
+        # Internal Mappings
+        self.tr = partial(QCoreApplication.translate, "NWTree")
 
         return