Issue #3424092 by intrafusion: Ignore requests with specific header(s)

Closes #3424092

config/install/rollbar.settings.yml

@@ -9,6 +9,7 @@ channels: ''
 rollbar_js_url: https://cdnjs.cloudflare.com/ajax/libs/rollbar.js/1.9.3/rollbar.min.js
 host_white_list: ''
 person_tracking: off
+ignored_headers: []
 ignored_messages: []
 scrub_fields:
   - 'passwd'