1.4.13

• fix download thread safety 0b7bf78 @shcheklein
• test authentication (#33) @casperdcl

---

This release changes the way we throw exceptions in the GetContentFile. It doesn't throw FileNotUploadedError and FileNotDownloadableError errors anymore. Instead ApiRequestError is always raised and GetField("reason"):

if (
    exc.error["code"] != 403
    or exc.GetField("reason") != "fileNotDownloadable"
)