added spanish translation entry in CHANGES
added spanish translation entry in CHANGES

velfimov/django-treebeard,kazmiruk/django-treebeard,torchbox/django-treebeard,velfimov/django-treebeard,torchbox/django-treebeard,kazmiruk/django-treebeard,velfimov/django-treebeard,kazmiruk/django-treebeard,albedoweb/django-treebeard,velfimov/django-treebeard,albedoweb/django-treebeard,albedoweb/django-treebeard,kazmiruk/django-treebeard,albedoweb/django-treebeard,torchbox/django-treebeard