Store "as it" in JSON (int or str)

The json lib does all the work

morss.py

@@ -151,17 +151,17 @@ class Cache:
 	def __contains__(self, key):
 		return key in self._cache or key in self._cached
 
-	def get(self, key, kind=str):
+	def get(self, key):
 		if key in self._cache:
-			return kind(self._cache[key])
+			return self._cache[key]
 		elif key in self._cached:
 			self._cache[key] = self._cached[key]
-			return kind(self._cached[key])
+			return self._cached[key]
 		else:
 			return None
 
 	def set(self, key, content):
-		self._cache[key] = str(content) or ''
+		self._cache[key] = content
 
 	def save(self):
 		if len(self._cache) == 0: