Remove dash gem

Conflicts:
	dash/Gemfile
	dash/LICENSE
	dash/app/controllers/spree/admin/analytics_controller.rb
	dash/app/controllers/spree/admin/overview_controller.rb
	dash/app/helpers/spree/admin/overview_helper.rb
	dash/app/helpers/spree/analytics_helper.rb
	dash/app/overrides/analytics_header.rb
	dash/app/views/spree/admin/analytics/sign_up.html.erb
	dash/app/views/spree/admin/overview/index.html.erb
	dash/config/locales/en.yml
	dash/config/routes.rb
	dash/lib/spree/dash.rb
	dash/lib/spree/dash/jirafe.rb
	dash/spec/controllers/admin/analytics_controller_spec.rb
	dash/spec/controllers/admin/overview_controller_spec.rb
	dash/spec/helpers/spree/analytics_helper_spec.rb
	dash/spec/requests/admin/analytics_spec.rb
	dash/spec/spec_helper.rb
	dash/spree_dash.gemspec
Disable Jirafe
Remove overview tab until Jirafe issues are sorted.

Conflicts:
	core/app/views/spree/admin/shared/_tabs.html.erb
Remove dash from rake stuff