Add rspec:install to application template

Have the application template run 'generate rspec:install' and
insert "require 'rspec/autorun'" into the spec/spec_helper.rb file
so the application is ready for the user to test any customizations.

HYDRASIR-81 #close
Add question prompt for RSpec in application template

Use a prompt to allow the user to choose whether or not to include
support for spec tests in their custom code.

HYDRASIR-81 #close
Create works delete button and modify controller.

Created the delete works button on the catalog#index
and the generic_works#show page.  Modified the
generic_works controller destroy method to properly
delete the object.

HYDRASIR-123 #close
HYDRASIR-124 #close
Merge pull request #410 from projecthydra/feature/HYDRASIR-86-delete-works

Create works delete button and modify controller.
Merge pull request #406 from projecthydra/feature/HYDRASIR-81-rspec-install-in-application-template

Add rspec:install to application template
The 'confirm' key is going away in favor of data attributes
Merge pull request #412 from projecthydra/feature/fix-confirm-deprication-warnings

The 'confirm' key is going away in favor of data attributes
Update .travis.yml