updates tests for corrected yaml paths

checks for the correct yaml paths in the metadata cron task
adds puppet 3.4.0 to the test matrix
removes puppet gem version < 3.4.0

introduction of contain functions means all tests will fail on platforms
less than that release version.
removes the exclusion for puppet versions not used
Merge pull request #169 from mrzarquon/update_tests

updates tests for corrected yaml paths