updated 重新整理旁支关系

src/prefix.js

@@ -45,10 +45,13 @@ var prefix = {
         'f,ob':['伯'],
         'f,lb':['叔','仲','季'],
         'm,xb':['舅'],
+        'f,f,xb,s':['堂','从父','叔伯','从'],
         'f,f,xb,s&o':['堂伯','从父伯','叔伯伯','从伯'],
         'f,f,xb,s&l':['堂叔','从父叔','叔伯叔','从叔'],
+        'f,f,f,xb,s,s':['从堂'],
         'f,f,f,xb,s,s&o':['从堂伯'],
         'f,f,f,xb,s,s&l':['从堂叔'],
+        'f,f,f,f,xb,s,s,s':['族'],
         'f,f,xs,s&o':['姑表伯'],
         'f,f,xs,s&l':['姑表叔'],
         'f,m,xb,s&o':['舅表伯'],