Change Teambox to Crewmate in specs, refs #101

Change the specs to reflect the fork new name. File names haven't been changed

Changing the Teambox for crewmate in the footer to fix build (see https://travis-ci.org/crewmate/crewmate/jobs/24214534)

Change what the test should expect from the formating of a long commit name

Fixing typo introduced in 7f57a1e

Change teambox for crewmate in the mailer model.Fix the failing test expecting crewmate.org

Changing from 2 to 3 dots to the ellipsis test for commits