Webhook events not triggering correctly

Issue Summary

Existing webhook documentation: https://confluence.atlassian.com/doc/managing-webhooks-1021225606.html

Webhooks are not triggering when expected - it seems that removed and trashed actions are swapped:
page_removed : As per the documentation, “page_removed” event will be triggered when a page is deleted (sent to the trash). Instead we noticed, it is triggered when a page is purged from the trash.

page_trashed : As per the documentation, “page_trashed” event will be triggered when a page is purged from the trash. Instead we noticed, it is triggered when a page is deleted (sent to the trash).

blog_removed : As per the documentation, “blog_removed” event will be triggered when a blog post is deleted (sent to the trash). Instead we noticed, it is triggered when a blog post is purged from the trash.

blog_trashed : As per the documentation, “blog_trashed” event will be triggered when a blog post is purged from the trash. Instead we noticed, it is triggered when a blog post is deleted (sent to the trash).

attachment_removed : As per the documentation, “attachment_removed” event will be triggered when a file is deleted (sent to the trash) from the attachments page. Instead we noticed, it is triggered when a file is purged from the trash.

attachment_trashed : As per the documentation, “attachment_trashed” event will be triggered when a file is purged from the trash. Instead we noticed, it is triggered when a file is deleted (sent to the trash).

space_removed : As per the documentation, “space_removed” event will be triggered when a space is deleted (sent to the trash). But, we noticed that it is not working when a space is deleted.

Steps to Reproduce

1. Set up webhooks for these events

Expected Results

For webhooks events to trigger the way they are documented.

Actual Results

removed events are swapped with trashed events - in some situations, trashed events don't exist so we were unable to trigger the webhook.

Workaround

Use the webhooks considering this swap