Log detaials if send to portal fails

 - Improve the code for error handling.
Fix Iframe does not load[#82203846]

 - Just specifying // and let the browser fill in http or https
 (protocol relative URL).
Remove autoscaling configuration from lara-staging.
Add route to check on delayed jobs.  [#82857250]

https://www.pivotaltracker.com/story/show/82857250
Bump autoscaling gem.  Skip autoscaling hooks if AWS key isn't defined.

Use set(:autoscaling_require_keys, true) to force do preflight checks and prevent deploying if they aren't present.
Export Activity

 - Create export action for lightweight_activity controler.
Import Export Activity

 - Include the type of interactive and type of embeddabe in the export
json.

 - Add implement of import activity for admins.
Export activity UI

 - Add UI for exporting the activity.
Export function for Embeddables and Interactives

 - Add export functions for image_question and multiple_choice
Export functions for Interactives

 - Add export functions for image,video,mw interactive.
Export/Import functions for interactives and embeddabels

 - Add export functions for xhtml,video_source classes.

 - Add import functions for xhtml, open_responce, multiple_choice,
   image_question, image_interactive, mw_interactive, video_interactive.
Add styling for import popup UI

 - Add styling for import popup.
update capistrano autoscaling gem.
Fix failing spec tests...

TODO:  Re add delayed_job_web

Why are delayed_job_web routes breaking the route constraints of interactive_page routes?
Display import button only for admin

 - Check if the current  user can perform import action.
Handle incorrect JOSN file

 - Display warning if the import fails or an attempt is made import
invalid json file.
Spelling and UI Changes.

 - Make the name of exporting activity bold.

 - Change the spelling of import, export button.
Authorize if the user can perform export

 - authorize export activity for current user
Revert the changes Iframe does not load[#82203846]

 - Author will decide weather to specify http or https.
Rspec tests for export functionality

 - Test cases for exporting an activity.