Require tagged version of nicebooks/isbn

Problem/Motivation

Today, I tried to update all modules/libraries for a site running on PHP 7.0 and it failed because as of today the package "nicebooks/isbn" requires PHP 7.1. Because I cannot upgrade to PHP 7.1 yet, updating modules/libraries failed:

nicebooks/isbn dev-master requires php >=7.1 -> your PHP version (7.0.14) does not satisfy that requirement.

Proposed resolution

This issue can be fixed by requiring a tagged release instead of a branch as explained on https://stackoverflow.com/questions/30235449/exclude-a-package-from-upda....
I propose to require ~0.0. This way for sites running on PHP 7.0 version 0.1 of the library can get installed.

Patch will follow.