highlight JSON with js mode

--HG--
branch : pmacs2

mode/javascript.py

@@ -113,11 +113,11 @@ class RhinoLoadFile(RhinoStart):
 
 class JavascriptTagManager(TagManager):
     lang  = 'Javascript'
-    exts  = set(('.js',))
+    exts  = set(('.js', '.json'))
 
 class Javascript(Fundamental):
     name        = 'Javascript'
-    extensions  = ['.js']
+    extensions  = ['.js', '.json']
     grammar     = JavascriptGrammar
     tabbercls   = JavascriptTabber2
     tagcls      = JavascriptTagManager