32-bit iOS has no vDSP_mmul - this was causing Unit Tests to fail
32-bit iOS has no vDSP_mmul - this was causing Unit Tests to fail

Looks like vDSP_mmul is a macro around cblas.

For now just cause a fatal error on 32-bit iOS

http://stackoverflow.com/questions/26519169/matrix-multiplication-in-swift-using-accelerate-framework-32-bit-vs-64-bit
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