v2.7.0

What's Changed

• Update to Unicode 15.0.0 by @seanmonstar in #59

v2.6.0

• Fix UniCase::eq in Unicode mode so that it doesn't equal a substring of the other.
• Make crate no_std.

v2.5.1

• Cargo.toml category typo fixed.

v2.5.0

• Decrease binary size of case-folding lookup table significantly.

v2.4.0

• Make const fn UniCase::ascii constructor.

v2.3.0

• Upgrade Unicode CaseFolding to 12.0.0
• Mark Ascii::new() and UniCase::unicode() as const fn.
• Add more From impls.
• Add UniCase::into_inner() and Ascii::into_inner().