rename timelimit to time

Author: Jerry Cheung

test/integration/test_search.rb

@@ -31,6 +31,6 @@ def test_search_timeout
     @ldap.search(:timeout => 1)
 
     payload, result = events.pop
-    assert_equal 1, payload[:timelimit]
+    assert_equal 1, payload[:time]
   end
 end