Without this patch we're not testing against Ruby 2.0.0 which has recently been
released. This is a problem because we'd like a way to be notified if a change
set breaks compatibility with future supported versions of Ruby.
This patch should not be taken as an indication that we fully support Ruby 2.0,
just as an indication that we plan to in the future.
This patch also tightens up the specifications of the build matrix. In
addition to testing against the specific Puppet dependency versions, we're also
testing against the latest 2.7.x release and the latest release.
Without this patch stdlib has Travis CI configuration files, but they
don't seem to completely specify the dependency versions and the build
matrix. This patch addresses the problem by putting the dependency
information in the conventional Gemfile location.
This patch should coincide with enabling Travis CI support for pull
requests. A build status image is also included in the project README.
