added unit tests for scatter and scatter_if with fancy iterators resolves issue #46
added unit tests for scatter and scatter_if with fancy iterators
resolves issue #46

--HG--
extra : convert_revision : svn%3A83215879-3e5a-4751-8c9d-778f44bb06a5/trunk%40526

jbrownbridge/thrust,jbrownbridge/thrust,jbrownbridge/thrust,jbrownbridge/thrust