Don't reload user repositories each time my repos tab is clicked
Bring back deferReadiness(), it was accidentally removed
Update ember-model
Update travis-web-log to use setImmediate.js

Currently travis-web-log uses setTimeout which makes long logs rendering
much slower than it should be.
Refactor the way we insert new records with pusher

Previousy I was using find to ensure that the record is materialized,
but the new version is much lighter - it uses Model#load to load the
record directly
Don't require sidebar and running jobs, it's not used anyway
No need to prefetch repos in recentRepos

Repo#withLastBuilds already does a fetch, so this is redundant