upgrade gem
Add extra models to test.
Promisify some paper relationships.

[ci skip]
(sip) event stream for dashboard papers based on collaborators
Remove papers from dashboard when removed as collaborator
clean up
improve method signatures
Merge branch 'master' into ember-data-beta-10
Change determineRelationshipType signature.
condense multiple promise-property things.
Remove uneeded test.
[ci skip]
README code formatting
update Task generator to create an engine
fix generator-mountable and skip-unit-test flags
add rake task to create custom Task card in Tahi

run with: rake custom_cards:install[‘Visualize’]
Fix computed property that depends on a promise.
Remove task/phase relationship code.
Set initial message comment differently.
Merge branch 'master' into ember-data-beta-10
Merge branch 'master' into feature/generate-task-as-gemmable-engine