adjust expression to not ignore matchCommunityTests option

this fixes issues #85 and #86
bump node.js versions because 0.9 is not supported by Travis CI anymore

See https://github.com/travis-ci/travis-ci/issues/2251 or https://github.com/travis-ci/travis-ci/issues/2240
do not test on unstable node.js version for now
Merge branch 'feature/do-not-ignore-matchcommunitytests-option' into develop