[#71702552] Introduce moderators

Add a property to the user that can identify it as a moderator.
Add a rake task for making users into moderators.
[#71702552] Refactor access to user in comments

Use request to get the current logged in user.
Store current user on views as metadata instead of on the collections
creating the events.
Introduce moderator role and add moderator role to abilities.
Merge branch 'master' into moderator_delete

Conflicts:
	app/assets/javascripts/kiwi/components/comments/comments.js.coffee
	spec/javascripts/comment_spec.js.coffee
[#72390930] Rerender replies after comment delete

Switch to using dom refresh to show replies so that after delete replies
are rendered.
[#72390930] Remove paragraph tag from marked text
[#71945328] added mailchimp integration
adding check to see if the api key is present
[#71945328] Added notifications feed into hipchat for new users and new events
[#72397600] Completed
Merge pull request #142 from Forekasting/71945328_mailchimp_integration

[#71945328] added mailchimp integration
merging in master
re-organizing Gemfile
Merge pull request #143 from Forekasting/71945328_crude_feed

[#71945328] Added notifications feed into hipchat for new users and new ...
Merge remote-tracking branch 'origin/master'
Merge pull request #141 from Forekasting/moderator_delete

Moderator delete
Merge remote-tracking branch 'origin/master'
Merge branch 'master' into subkast_url