fix depreciation warning in latest puppet versions
test on more puppet versions
reorder puppet versions in .travis.yaml
Worked around RubyGems 2.2.0 bug on Travis-CI

See rubygems/rubygems#763
do not fail if corosync is not ready
update tests to use {:failonfail => false}
Merge pull request #59 from roidelapluie/master-puppet34

fix depreciation warning in latest puppet versions