Add ricow@ to the watchlist of tools/

R=whesse@google.com

Review URL: https://codereview.chromium.org//176883014

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@33204 260f80e4-7a28-3924-810f-c04153c831b5

WATCHLISTS

@@ -10,10 +10,14 @@
     'runtime': {
       'filepath': 'runtime/',
     },
+    'tools': {
+      'filepath': 'tools/',
+    },
   },
 
   'WATCHLISTS': {
     'runtime': ['vm-dev@dartlang.org'],
+    'tools': ['ricow@google.com'],
   },
 }