Fix several small, embarassing typos.

etiquette/objects.py

@@ -568,7 +568,7 @@ class Bookmark(ObjectBase):
             return ''
 
         if not isinstance(url, str):
-            raise TypeError('URL must be string, not %s' % type(title))
+            raise TypeError('URL must be string, not %s' % type(url))
 
         url = url.strip()
 

etiquette/photodb.py

@@ -1089,7 +1089,7 @@ class PDBUtilMixin:
                 exclude_filenames = self.config['digest_exclude_files']
             return exclude_filenames
 
-        def _normalize_new_photo_kwargs(new_photo_kargs):
+        def _normalize_new_photo_kwargs(new_photo_kwargs):
             if 'commit' in new_photo_kwargs:
                 new_photo_kwargs.pop('commit')
             if 'filepath' in new_photo_kwargs:

etiquette/searchhelpers.py

@@ -142,7 +142,7 @@ def normalize_author(authors, photodb, warning_bag=None):
     for requested_author in authors:
         if isinstance(requested_author, objects.User):
             if requested_author.photodb == photodb:
-                user_ids.add(requested_author.id)
+                users.add(requested_author)
             else:
                 requested_author = requested_author.username
 
@@ -243,7 +243,7 @@ def normalize_mimetype(mimetype, warning_bag=None):
 
     Returns: A set of strings.
     '''
-    return normalize_extensions(mimetype, warning_bag)
+    return normalize_extension(mimetype, warning_bag)
 
 def normalize_offset(offset, warning_bag=None):
     '''