Terminus should report more specific version information on dev-master

[greg-1-anderson]

Expected behavior

When running a development version of Terminus, the version should be reported as 1.1.1-dev (or similar)

Actual behavior

Terminus reports that it is version 1.1.1 for the stable version, and all dev versions after it, until the next stable tags.

Steps to reproduce the behavior

Install a dev version of Terminus (e.g. git clone, or composer require pantheon-systems/terminus:*) and run terminus version

This caused some confusion on #power-users, who thought that the 1.0.0 version was being re-tagged with new functionality.

[TeslaDethray]

I think this is a good idea. I've been similarly bamboozled.

To implement this, we would need to

• Change the version number on Terminus' master branch to a.b.c-dev after the release is tagged
• Add this as a step in our Terminus release guide
• Also do for 0.x because why not

Do you concur @greg-1-anderson? If so, I'll implement.

[greg-1-anderson]

Yes, that looks right.

Some form of version-string-manipulation-dance is what most projects do (remove -dev to tag a release, put it back when done).