Rename Item model to Task

- With matching model, view, template changes

todo/models.py

@@ -1,14 +1,12 @@
 from __future__ import unicode_literals
 import datetime
 
-from django.db import models
-from django.contrib.auth.models import Group
-from django.urls import reverse
-from django.utils.encoding import python_2_unicode_compatible
 from django.conf import settings
+from django.contrib.auth.models import Group
+from django.db import models
+from django.urls import reverse
 
 
-@python_2_unicode_compatible
 class TaskList(models.Model):
     name = models.CharField(max_length=60)
     slug = models.SlugField(default='',)
@@ -25,8 +23,7 @@ class TaskList(models.Model):
         unique_together = ("group", "slug")
 
 
-@python_2_unicode_compatible
-class Item(models.Model):
+class Task(models.Model):
     title = models.CharField(max_length=140)
     task_list = models.ForeignKey(TaskList, on_delete=models.CASCADE, null=True)
     created_date = models.DateField(auto_now=True)
@@ -41,7 +38,7 @@ class Item(models.Model):
 
     # Has due date for an instance of this object passed?
     def overdue_status(self):
-        "Returns whether the item's due date has passed or not."
+        "Returns whether the Tasks's due date has passed or not."
         if self.due_date and datetime.date.today() > self.due_date:
             return True
 
@@ -51,25 +48,24 @@ class Item(models.Model):
     def get_absolute_url(self):
         return reverse('todo:task_detail', kwargs={'task_id': self.id, })
 
-    # Auto-set the item creation / completed date
+    # Auto-set the Task creation / completed date
     def save(self, **kwargs):
-        # If Item is being marked complete, set the completed_date
+        # If Task is being marked complete, set the completed_date
         if self.completed:
             self.completed_date = datetime.datetime.now()
-        super(Item, self).save()
+        super(Task, self).save()
 
     class Meta:
         ordering = ["priority"]
 
 
-@python_2_unicode_compatible
 class Comment(models.Model):
     """
     Not using Django's built-in comments because we want to be able to save
     a comment and change task details at the same time. Rolling our own since it's easy.
     """
     author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
-    task = models.ForeignKey(Item, on_delete=models.CASCADE)
+    task = models.ForeignKey(Task, on_delete=models.CASCADE)
     date = models.DateTimeField(default=datetime.datetime.now)
     body = models.TextField(blank=True)