Rename STAGES_WITH_SETUP_CACHE to STAGES
Rename STAGES_WITH_SETUP_CACHE to STAGES

There is only one set of STAGES now.

andyli/travis-build,kevmoo/travis-build,andyli/travis-build,craigcitro/travis-build,kevmoo/travis-build,craigcitro/travis-build,JuliaCI/travis-build,akoeplinger/travis-build,JuliaCI/travis-build,jhass/travis-build,akoeplinger/travis-build,jhass/travis-build