configitems: register the 'web.templates' config

mercurial/configitems.py

@@ -643,6 +643,9 b" coreconfigitem('web', 'stripes',"
 coreconfigitem('web', 'style',
     default='paper',
 )
+coreconfigitem('web', 'templates',
+    default=None,
+)
 coreconfigitem('worker', 'backgroundclose',
     default=dynamicdefault,
 )

mercurial/hgweb/hgwebdir_mod.py

@@ -174,7 +174,7 b' class hgwebdir(object):'
         self.ui = u
         encoding.encoding = self.ui.config('web', 'encoding')
         self.style = self.ui.config('web', 'style')
-        self.templatepath = self.ui.config('web', 'templates', None)
+        self.templatepath = self.ui.config('web', 'templates')
         self.stripecount = self.ui.config('web', 'stripes')
         if self.stripecount:
             self.stripecount = int(self.stripecount)