v1.0.1: Version 1.0.1

• no_std support (#51)
• Remove unreachable dependency (#50)

v0.5.1

• Check addition for NaN (#48).
• Upgrade to unreachable 1.0.

v.1.0.0

• Requires Rust 1.28 or higher (#49).
• Renamed NotNaN to NotNan (#28).
• Make Ord and PartialOrd agree on ordering (#35).
• Structs are #[repr(transparent)] (#49).
• Check addition for NaN (#48).
• Implement traits from num-traits (#31, #42, #46).
• Improved error display (#24)
• Upgraded dependencies (#30, #33, #37, #38, #40, #45).