Removing Rush Release

[vonglasow]

Since now, we used Rüsh Release[1 & 2] which was a good combination between Rolling Release[3] and Semantic versioning[4]. As now, we don't need more Rolling Release we have decided to migrate to Semantic versionning.

1 - https://mnt.io/2014/09/15/rush-release/
2 - https://hoa-project.net/En/Source.html#Rush_Release
3 - https://en.wikipedia.org/wiki/Rolling_release
4 - https://semver.org/