Solve the versioning issue.

[Southclaws]

In a recent issue, #28, it was pointed out that the 0.3.DL version of the library has not received the same treatment as the main version.

This is because the 0.3.DL tag points to an older commit.

I propose we scrap tags, scrap branches and just go for a master branch that holds the latest version, gated maybe with preprocessor definitions.