Feature: Signed `clang4` installer

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After paying for an Apple Developer Program subscription for a year, I can now digitally sign the installer.

The purchase of the Apple Developer Program subscription was made possible due to a donation made by Prof. Timothy Bates of the University of Edinburgh.

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About 12 days and an e-mail to the developer support later... I am now enrolled in the Developer program. I'll try to make sure this goes live later this weekend. Apologies for the delay.

Enrollment E-Mail:

Support Request:

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@tbates Please see above. I am planning on tackling this on Wednesday. I've been consumed with preparing slides for a learning group presentation regarding a new computational framework for exploratory cognitive diagnostic models (c.f. https://link.springer.com/article/10.1007%2Fs11336-017-9579-4)