Remove backbone application

Conflicts:
	app/overrides/include_augury_js.rb

Conflicts:
	app/assets/javascripts/admin/augury.js.coffee
	app/assets/javascripts/admin/events/connection_events.coffee
	app/assets/javascripts/admin/extensions/event_aggregator.coffee
	app/assets/javascripts/admin/models/integration.js.coffee
	app/assets/javascripts/admin/models/message.js.coffee
	app/assets/javascripts/admin/routers/connections.js.coffee
	app/assets/javascripts/admin/routers/integrations.js.coffee
	app/assets/javascripts/admin/routers/mappings.js.coffee
	app/assets/javascripts/admin/routers/parameters.js.coffee
	app/assets/javascripts/admin/routers/schedulers.js.coffee
	app/assets/javascripts/admin/routers/tests.js.coffee
	app/assets/javascripts/admin/spree_hub_connector.js
	app/assets/javascripts/admin/templates/connections/select.jst.eco
	app/assets/javascripts/admin/templates/home/index.jst.eco
	app/assets/javascripts/admin/templates/home/modal.jst.eco
	app/assets/javascripts/admin/templates/home/select_connection.jst.eco
	app/assets/javascripts/admin/templates/integrations/index.jst.eco
	app/assets/javascripts/admin/templates/shared/confirm_delete.jst.eco
	app/assets/javascripts/admin/views/connections/new.js.coffee
	app/assets/javascripts/admin/views/connections/select.js.coffee
	app/assets/javascripts/admin/views/home/add_integration.js.coffee
	app/assets/javascripts/admin/views/tests/new.js.coffee
	app/controllers/spree/admin/integration_controller.rb
	app/views/spree/admin/integration/show.html.erb
	lib/spree_hub_connector/preloader.rb
	spec/lib/spree_hub_connector/preloader_spec.rb
Uses hub_client assets only if they are available. Doesn't throw
exception warning users anymore. Fixes #10

Conflicts:
	app/views/spree/admin/integration/show.html.erb
Add Queue Summary static html and styles
Add hub menu
Align integration select to the right
Add initial table style and date range picker (WIP)

Conflicts:
	app/assets/javascripts/admin/spree_hub_connector.js
More styles for messages table & date ranges picker
Fix datepicker border
Static html/css for message view
Highlight custom integrations in list

Conflicts:
	app/assets/javascripts/admin/views/home/integration.js.coffee
Add integration errors view

Conflicts:
	app/assets/javascripts/admin/views/home/add_integration.js.coffee
	app/assets/javascripts/admin/views/home/index.js.coffee
Use default endpoint icon for integrations that don't have icon_url set

Conflicts:
	app/assets/javascripts/admin/templates/home/integration.jst.eco
Initial html markup for notifications index

Conflicts:
	app/assets/javascripts/admin/spree_hub_connector.js
	app/assets/javascripts/admin/templates/notifications/index.jst.eco
Notifications table styles

Conflicts:
	app/assets/javascripts/admin/spree_hub_connector.js
Fix states font size
Messages#show - Show result

Conflicts:
	app/assets/javascripts/admin/spree_hub_connector.js
	app/assets/javascripts/admin/templates/messages/show.jst.eco
Updates metric round & sign

Conflicts:
	app/assets/javascripts/admin/models/queue_stats.js.coffee
	app/assets/javascripts/admin/templates/queues/stats.jst.eco
Styles for custom integrations in the list.

Conflicts:
	app/assets/javascripts/admin/views/home/integration.js.coffee
Add custom endpoint modal dialog styles.

Conflicts:
	app/assets/javascripts/admin/templates/home/new_endpoint.jst.eco
Fix messages filter styles. Show table only if there is messages available.

Conflicts:
	app/assets/javascripts/admin/templates/queues/index.jst.eco