Add status to corpus model again...

app/models.py

@@ -437,6 +437,7 @@ class Corpus(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     creation_date = db.Column(db.DateTime(), default=datetime.utcnow)
     description = db.Column(db.String(255))
+    status = db.Column(db.String(16))
     title = db.Column(db.String(32))
     user_id = db.Column(db.Integer, db.ForeignKey('users.id'))
     # Relationships