Archived docs version now available

Hi guys,

We are hosting our docs website on github and unfortunately it does not enable us to have more than one verision of the docs at the same time, which means that we are always overwriting the earlier docs sites.

Since some of you guys are using older library versions, we’ve decided to publish our older docs versions from the release v2.1:

Each time the new version of the library comes out the old release will be published on this site.

If there is a need for earlier versions we can publish them as well.