Pull in Timezone and CryptoSwift changes

NOTE

Due to a versioning issue in 1.4.1, the published podspec has been removed. Leaving this tag and release here for posterity.

Please use 1.4.2 instead.

What's Changed

Remove force-unwrap on DateTypes.Time.timeZone, and instead return Timezone.current if it's not found
Unpin CryptoSwift 1.4.0 in AferoLab, and fix an unwrap-of-nonoptional in AferoAPIClient+Account