Removed ununsed import, and did other cleanups

apps/documents/forms.py

@@ -2,14 +2,10 @@ from django import forms
 from django.utils.translation import ugettext_lazy as _
 from django.utils.translation import ugettext
 from django.http import HttpResponseRedirect
-from django.utils.http import urlencode
 from django.core.urlresolvers import reverse
 from django.utils.safestring import mark_safe
-from django.forms.formsets import formset_factory
-from django.template.defaultfilters import capfirst
 from django.conf import settings
 
-from tags.widgets import get_tags_inline_widget
 from common.wizard import BoundFormWizard
 from common.forms import DetailForm
 from common.literals import PAGE_SIZE_CHOICES, PAGE_ORIENTATION_CHOICES