Move rearrange survey examples into its own file.
	modified:   spec/features/create_survey_spec.rb - remove rearrange survey tests.

	new file:   spec/features/rearrange_survey_spec.rb - add rearrange survey tests.

	modified:   spec/support/surveyforms_creation_helpers.rb - remove unused module

	modified:   spec/support/surveyforms_rearrangement_helpers.rb - add some questions to
	the build_a_survey method to enable some more examples.