Merge branch 'master' into milestone-ref

.gitignore

CHANGELOG

app/assets/stylesheets/pages/commits.scss

app/controllers/projects/branches_controller.rb

app/models/project.rb

app/models/project_services/asana_service.rb

app/models/repository.rb

app/models/tree.rb

app/views/abuse_report_mailer/notify.html.haml

app/views/projects/branches/_branch.html.haml

doc/api/users.md

lib/api/users.rb

lib/version_check.rb

spec/models/project_services/asana_service_spec.rb

spec/services/notification_service_spec.rb