Adding a status field to our User.create() method.

Fixes #14.
Updating docs!
Version bump.
Version bump.
Version bump.
Fixing #16.
Version bump.
Updating changelog.
Adding upgrading guide.
Adding in support for Google login's `hd` attribute.
Adding docs on new release.
Version bump.
Version bump.
Version bump.
Updating travis creds.
Merge pull request #13 from denibertovic/develop

minor user agent tweak
Adding changelog info.
Adding disclaimer on changelog.
Fixing typo.
Fixing broken group adding docs.