[deprecations] Remove the need to use beforeObserver in job-log component
[deprecations] Remove the need to use beforeObserver in job-log component

fauxton/travis-web,travis-ci/travis-web,fotinakis/travis-web,fotinakis/travis-web,fotinakis/travis-web,travis-ci/travis-web,fauxton/travis-web,fauxton/travis-web,fotinakis/travis-web,travis-ci/travis-web,travis-ci/travis-web,fauxton/travis-web