ElementCollections#to_s should call to_s on all the elements in the collection.
ElementCollections#to_s should call to_s on all the elements in the collection.

This makes the collections API act more like Ruby's Array class.
Also useful in irb where one can do `puts browser.divs' and get nice output.

watir/watir-classic,jarib/watir,watir/watir-classic,watir/watir-classic,jarib/watir,watir/watir-classic,jarib/watir