MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

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Puh, apparently 2015.03 can't handle this syntax style either. I knew 2014.03 couldn't (since it's my debian standard package), I don't have the 2015.03 available for testing.
Honestly even if you are new to OpenSCAD, give the Nightly versions (Development Snapshots) a try. The 2016.XX versions also offer a bunch of new features, faster rendering etc...