old_contents: from django.db import models
  from django.utils.translation import ugettext_lazy as _
  from cms.models.pluginmodel import CMSPlugin
  
  
  class TwitterRecentEntries(CMSPlugin):
      title = models.CharField(_('title'), max_length=75, blank=True)
      twitter_user = models.CharField(_('twitter user'), max_length=75)
      count = models.PositiveSmallIntegerField(_('count'), default=3,
                                               help_text=_('Number of entries to display'))
      link_hint = models.CharField(_('link hint'), max_length=75, blank=True,
                                   help_text=_('Deprecated: no longer used by Twitter widgets.'))
      twitter_id = models.CharField(_('twitter id'), max_length=75,
                                   help_text=_(u'See https://twitter.com/widgets on how to obtain one'))
  
      def __unicode__(self):
          return self.title
  
  
  class TwitterSearch(CMSPlugin):
      title = models.CharField(_('title'), max_length=75, blank=True)
      query = models.CharField(_('query'), max_length=200, blank=True, default='',
                               help_text=_('Deprecated: no longer used by Twitter widgets. Define one when creating widgets.'))
      count = models.PositiveSmallIntegerField(_('count'), default=3,
                                               help_text=_('Number of entries to display'))
      twitter_id = models.CharField(_('twitter id'), max_length=75,
                                   help_text=_(u'See https://twitter.com/widgets on how to obtain one'))
  
      def __unicode__(self):
          return self.title
new_contents: from django.db import models
  from django.utils.translation import ugettext_lazy as _
  from cms.models.pluginmodel import CMSPlugin
  
  
  class TwitterRecentEntries(CMSPlugin):
      title = models.CharField(_('title'), max_length=75, blank=True)
      twitter_user = models.CharField(_('twitter user'), max_length=75)
      count = models.PositiveSmallIntegerField(_('count'), default=3,
                                               help_text=_('Number of entries to display'))
      link_hint = models.CharField(_('link hint'), max_length=75, blank=True,
                                   help_text=_('Deprecated: no longer used by Twitter widgets.'))
      twitter_id = models.CharField(_('twitter id'), max_length=75,
                                   help_text=_(u'See https://twitter.com/settings/widgets on how to obtain one'))
  
      def __unicode__(self):
          return self.title
  
  
  class TwitterSearch(CMSPlugin):
      title = models.CharField(_('title'), max_length=75, blank=True)
      query = models.CharField(_('query'), max_length=200, blank=True, default='',
                               help_text=_('Deprecated: no longer used by Twitter widgets. Define one when creating widgets.'))
      count = models.PositiveSmallIntegerField(_('count'), default=3,
                                               help_text=_('Number of entries to display'))
      twitter_id = models.CharField(_('twitter id'), max_length=75,
                                   help_text=_(u'See https://twitter.com/settings/widgets on how to obtain one'))
  
      def __unicode__(self):
          return self.title
  
subject: Update models.py