fix rubocop issues.
newer rubocop found new things
Merge branch 'master' of github.com:cloudfoundry-incubator/admin-ui into fixRubocop

Conflicts:
	spec/support/server_helper.rb
	spec/unit/log_files_spec.rb
Merge pull request #13 from cloudfoundry-incubator/fixRubocop

fix rubocop issues.