Updated the Travis CI integration to include a build configuration that uses the last known cmcstl2 revision for which a successful build completed.
Updated the Travis CI integration to include a build configuration that uses the last known cmcstl2 revision for which a successful build completed.

tahonermann/text_view,tahonermann/text_view-range-v3,tahonermann/text_view,tahonermann/text_view-range-v3