Add a DEFAULT_METADATA setting.

It is now possible to have soem default metadata defined in the settings. Fixes #98

pelican/contents.py

@@ -16,7 +16,10 @@ class Page(object):
         self.translations = []
 
         self.status = "published"  # default value
-        for key, value in metadatas.items():
+
+        local_metadata = dict(settings['DEFAULT_METADATA'])
+        local_metadata.update(metadatas)
+        for key, value in local_metadata.items():
             setattr(self, key.lower(), value)
 
         if not hasattr(self, 'author'):

pelican/settings.py

@@ -37,6 +37,7 @@ _DEFAULT_CONFIG = {'PATH': None,
                    'WITH_PAGINATION': False,
                    'DEFAULT_PAGINATION': 5,
                    'DEFAULT_ORPHANS': 0,
+                   'DEFAULT_METADATA': (),
                   }
 
 def read_settings(filename):