Fix a truckload of bugs as I'm trying it the commit-queue out on real changes.

checkout.py

Index: checkout.py
diff --git a/checkout.py b/checkout.py
index 4226cda9fb6f7c03b761428fa3450e8b2b89c802..e91ccefd85ff7314af13351c6eb11d4e2f646617 100644
--- a/checkout.py
+++ b/checkout.py
@@ -116,7 +116,7 @@ class SvnMixIn(object):
     """
     self._check_call_svn(
         ['propset', '--revprop', 'svn:author',
-        '-r', revision,
+        '-r', str(revision),
         new_author,
         self.svn_url])
 
@@ -250,6 +250,7 @@ class GitCheckoutBase(CheckoutBase):
          '%s/%s' % (self.remote, self.remote_branch)])
     self._check_call_git(['apply', '--index', '-p0'], stdin=patch_data)
     self._check_call_git(['commit', '-m', 'Committed patch'])
+    return True
 
   def commit(self, commit_message, user):
     """Updates the commit message.