FIX: add missing entry in registry

src/caoscrawler/crawl.py

@@ -374,6 +374,9 @@ class Crawler(object):
             "TextElement": {
                 "converter": "TextElementConverter",
                 "package": "caoscrawler.converters"},
+            "Date": {
+                "converter": "DateElementConverter",
+                "package": "caoscrawler.converters"},
             "DictIntegerElement": {
                 "converter": "IntegerElementConverter",
                 "package": "caoscrawler.converters"},