kensa test all does not run all tests

[glenngillen]

We recently had a brief outage with our add-on. Our engineers ran "kensa test all", which they just discovered doesn't include "kensa test sso". It would be great if "all" included single sign on.

[Genkilabs]

bump

[duff]

I submitted a pull request for this:

#60

It includes the sso test @glenngillen requested and it also includes a manifest test.