Make the classmate OSGi version range less strict

Currently, the OSGi version range is very strict as it requires at least the version we declare as a dependency.

I don't think it is such a good idea, typically GlassFish/Payara still uses 1.3.3, while we now use 1.3.4 and it's not a big deal.

Let's make the range accept 1.3 to 2.0 excluded.