More debug and log messages.

Hi,

It would be nice to have more verbose debug and log messages on the module. I've had problems setting up locally and on one of our servers because of the lack of log messages.

Like for example, I've got it set up on our server, the login icons show up and I've used autodetect on the API communication. When I click on an icon the pop up appears and I proceed to log in. The popup closes and I get the redirect message. Then I'm back on the login page not logged in. No log or error message anywhere. :(