[#60081694] link "Details & Slides" for past events to meet up event page

* form now? unless/until a better referral possible
test rake task expectations .. because we can;-)
[#60081694] refactor event_url render specs to use test attribute hooks
Merge pull request #3 from tardate/61637004_link_past_events

[#60081694] link "Details & Slides" for past events to meet up event page
Merge pull request #4 from tardate/test_tasks

test rake task expectations .. because we can;-)
Link the Google Group and Facebook page texts to their respective pages
Merge pull request #5 from thekindofme/master

Link the Google Group and Facebook page texts to their respective pages