Use multiple keys branch for travis-build.
Revert "Use multiple keys branch for travis-build."

This reverts commit 24b1b9d3ef865d9ef1d1f5e88fc2ef4ae307e3b1.

The approach doesn't work unfortunately.
Bump travis-build

Includes fix for travis_wait()
Bump travis-build
Merge branch 'staging' of github.com:travis-ci/travis-worker into staging
bump travis-build
Bump travis-build

Test 1408902eecb8b442017728e73495c6b59f74cb26

(ha-feature-highlight-nonzeo-exit-status branch)
Bump travis-build

Includes reworked header.sh
bump travis-build
Bump travis-worker
Merge branch 'master' into staging

Conflicts:
	Gemfile.lock
Bump travis-build.
Bump travis-build.
Merge branch 'staging' into bluebox-production-com
Merge branch 'bluebox-production-com' into bluebox-production-org

Conflicts:
	Gemfile.lock