Fix __VERSION__ undefined in dev mode

[tchakabam]

Moving to Travis deploy probably broke this? Seems to be a valid fix @tjenkinson ? :)

Is it intended we don't have a version number anymore in the package.json?

[tjenkinson]

Yes version is only set in the published packages. Maybe it makes more sense to set it to something like DEVELOPMENT or the commit hash when running in dev mode?

[tchakabam]

@tjenkinson I am just helping to re-establish the previous behavior here :) I suggest that if you want to get more fancy you take care of it!

Currently (with this PR) when there is a diff between the last tag and the current commit, it will say v0.11.1-SNAPSHOT (for current v0.11.0).

I find that sufficient to indicate what's going on.

There are other possibilities supported by the script here, like including the timestamp: https://www.npmjs.com/package/git-tag-version

I don't really see the need for seeing the commitish in the demo page, anyone can check that on the CLI.

But I think it was cool to have the version number in there in dev mode, and this was broken by the recent move to Travis deploy, and I just want a fix for that which renders to what we had before :)

[tchakabam]

You may be right, a commitish might come in handy for people testing sometimes, and was very quick to add 👍

Btw it also contains the branch name now, followed by the short commit hash.

[tjenkinson]

Neat