Add ruby 2.1 and 2.2 to travis config
Since schleuder supports ruby >=2.1, the travis build should be tested against these versions.
Use hashrocket syntax in some of the specs, to make them work with 2.1.
Since schleuder supports ruby >=2.1, the travis build should be tested against these versions.
Use hashrocket syntax in some of the specs, to make them work with 2.1.