Minor fixes and GNUstep subproject files #1
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Included are several minor fixes and slight changes to allow building the classes as a subproject for any GNUstep project. The GNUstep port has been done on FreeBSD 10.x and runs in production without issues for several years now.
The
ObjectiveZMQTests.xcodeproj
has been upgraded by Xcode (7.x?). I've just included it here for completeness, you might want to omit it.