Released version still depends on Nom 3.x

[haimgel]

Hello,
Even though the code in "main" has been updated to Nom 7, the latest released version still uses Nom 3. It would be great if you could mint a release for this crate (and others, like ddc-* that depend on MCCS):

Rust shouts at me because of a future incompatibility, and MCCS is the only transitive dependency left in my project that still requires it.