add website app, move articles to it, fix programs.models

website/models.py

@@ -0,0 +1,35 @@
+from django.db import models
+from django.utils.translation import ugettext as _, ugettext_lazy
+
+from programs.models import Publication
+
+
+class Article (Publication):
+    parent = models.ForeignKey(
+        'self',
+        verbose_name = _('parent'),
+        blank = True, null = True,
+        help_text = _('parent article'),
+    )
+    static_page = models.BooleanField(
+        _('static page'),
+        default = False,
+    )
+    focus = models.BooleanField(
+        _('article is focus'),
+        default = False,
+    )
+    referring_tag = models.CharField(
+        _('referring tag'),
+        max_length = 32,
+        blank = True, null = True,
+        help_text = _('tag used by other to refers to this article'),
+    )
+
+    class Meta:
+        verbose_name = _('Article')
+        verbose_name_plural = _('Articles')
+
+
+
+