Explicitly conform to NSSecureCoding
Override +supportsSecureCoding
Remove assertion for allowedClasses
Subclasses may choose to disable MTLModel's archiving for select properties and override -initWithCoder: and -encodeWithCoder: themselves to provide their own encoding/decoding functionality. This assertion fails if they do that.
Decode model version using secure coding
Code style fixes
Make NSSecureCoding opt-in
Added blank line
Restore the assertion
Use dot syntax for NSNumber +class
Merge pull request #71 from indragiek/secure-coding

Secure coding fixes