Update ui tests submodule [ci skip].
Refs #3089, use rarr/larr instead of right/left arrow images in visitor profile.
Refs #3089, show location of visit when visit clicked in visitor profile.
Make sure 'hide map' and 'show map' have non breaking spaces in them.
Refs #3089, allow visitor avatar image to be set based on visitor profile data, and add event that plugins can use to augment visitor profile data.