Remove tagging from TODO, will tag this commit.

Signed-off-by: KheOps <kheops@ceops.eu>
Add a minimalist ChangeLof before tagging.

Signed-off-by: KheOps <kheops@ceops.eu>
Modify function fetching package version to strip off the initial part of the tag which will look like this: 'portsplit-1.0.0-rc0'. The version will be '1.0.0-rc0'.

Signed-off-by: KheOps <kheops@ceops.eu>