Fixed #58 -- capfirst verbose_name when creating the label for form fields, the…

Fixed #58 -- capfirst verbose_name when creating the label for form fields, the same way django's builtin fields do.

taggit/managers.py

 from django.contrib.contenttypes.generic import GenericRelation
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
-from django.db.models.fields.related import ManyToManyRel, RelatedField
+from django.db.models.fields.related import ManyToManyRel, RelatedField, add_lazy_relation
 from django.db.models.related import RelatedObject
-from django.db.models.fields.related import add_lazy_relation
+from django.utils.text import capfirst
 from django.utils.translation import ugettext_lazy as _
 
 from taggit.forms import TagField
@@ -92,7 +92,7 @@ class TaggableManager(RelatedField):
 
     def formfield(self, form_class=TagField, **kwargs):
         defaults = {
-            "label": self.verbose_name,
+            "label": capfirst(self.verbose_name),
             "help_text": self.help_text,
             "required": not self.blank
         }

taggit/tests/tests.py

@@ -367,7 +367,7 @@ class TaggableFormTestCase(BaseTaggingTestCase):
     def test_formfield(self):
         tm = TaggableManager(verbose_name='categories', help_text='Add some categories', blank=True)
         ff = tm.formfield()
-        self.assertEqual(ff.label, 'categories')
+        self.assertEqual(ff.label, 'Categories')
         self.assertEqual(ff.help_text, u'Add some categories')
         self.assertEqual(ff.required, False)