Do not require message about versiontag

[franiglesias]

I'll look into it. I've had problems trying to tag without message (the script failed).

[pkristian]

the problem is, that you after major|minor|patch you expect message.
since this package is new, i will suggest BC break: versiontag major -m|--message "message"
same like in git commit

[franiglesias]

The problem happened when the script tried to execute git tag without message. It failed when opening editor to add message. I've not looked yet how to tag with no message, so I force a message to be passed. I'm agree with the BC break. I'll take a look this night :-).

[pkristian]

i looked in docu: https://git-scm.com/docs/git-tag

it looks like it is problem with git tag -a which looks like require message
but unannotated tags are ignored by git describle, so what about to change to git tag --list for getting last tag?

[franiglesias]

I'm looking into that, but see issue #4 to discuss about the source of truth about versioning. Having the .semver file, I'm considering to use it instead of git tags (or have some kind of check to verify them. Not sure about that). This also resolve the unannotated tags issue.

By the other hand, git tag --list has the problem that could be difficult to know which is the last tag.

[franiglesias]

I want to merge some fixes before implement this.