Fix datepicker border
Merge branch 'ui_redesign' of https://github.com/spree/spree_hub_connector into ui_redesign

* 'ui_redesign' of https://github.com/spree/spree_hub_connector:
  Updates how to highlight selected tab items
  Fixes new integration jQuery references
  Fixes new and change connection jQuery references
  Updates Test Tool cancel button link
  Fix typo
  Sends message content as JSON
  Clears LAST GENERATED MESSAGE after update
  Adds the new Test Page similar to augury_admin/test
  Rename consumers to services
Static html/css for message view