be_success is deprecated and will be removed in Rails 6.

Facebook removed the API and facebook integration is broken now, so lets
remove it.

closes #7874

This was added by accident with the rails5 upgrade

Also remove some unused html responses

closes #7223

handle photos in StatusMessageCreationService

* move parameter normalization back to controller, because this is
  frontend-specific.
* if the StatusMessage is public, save also public photos

Revert "Revert "Merge pull request #5852 from margori/3393-activity-stream-keeping-retracted-participations""

This reverts commit 2c7848e3.

Revert "Merge pull request #5852 from margori/3393-activity-stream-keeping-retracted-participations"

This reverts commit 096fa2dd, reversing
changes made to f7d11051.

* Dropped all references to Resque
* Moved all jobs under app/workers since that's the Sidekiq convention
* Renamed Jobs module to Worker to match new location
* Adapted all jobs to Sidekiq
* Replaced all enqueue calls with perform_async
* Dropped Resque hacks from specs and features, replaced with
  sidekig/testing in RSpec and sidekig/testing/inline in Cucumber
* Updated scripts to start a Sidekiq server
* Inline Sidekiq sinatra app
* Let Sidekiq create the actual Redis instance
* Workaround already initialized constant warnings in service models
* Resolved ToDo in one job definition by creating proper exception clases
  for some errors in receiving posts
* Added sidekiq section to configuration to make it completly
  configurable to the user
* Add Sidekiq middleware for clean backtraces
* Delay HttpMulti retry to give offline pods a chance to come back up
* Do not retry on GUID already taken and alike errors
* Be graceful about deleted posts in GatherOEmbedData

it auto-expands to the size of the text that was selected
it self-closes after posting again

see also #2741 #2751 #2800

it auto-expands to the size of the text that was selected
it self-closes after posting again

see also #2741 #2751 #2800