watir.rb in watir-6.18.0

- old
+ new

@@ -4,9 +4,10 @@
 require 'watir/scroll'
 require 'watir/legacy_wait'
 require 'watir/wait'
 require 'watir/exception'
 require 'watir/window'
+require 'watir/window_collection'
 require 'watir/has_window'
 require 'watir/adjacent'
 require 'watir/js_execution'
 require 'watir/alert'
 require 'watir/js_snippets'