ArloMedia does not work when a doorbell device is linked in the account

[tchellomello]

Currently, we don't support Arlo DoorBells and this code is a temporary workaround to get the media library loaded when a doorbell is present.

Fixes: #103

[tchellomello]

@MizterB could you try to see if the code above workaround the problem for #103?

[coveralls]

Coverage decreased (-0.2%) to 79.693% when pulling 5fded72 on issue_103_retrieving_media_doorbell into 47f7934 on master.

[coveralls]

Coverage decreased (-0.2%) to 79.693% when pulling 5fded72 on issue_103_retrieving_media_doorbell into 47f7934 on master.

[coveralls]

Coverage decreased (-0.2%) to 79.693% when pulling 5fded72 on issue_103_retrieving_media_doorbell into 47f7934 on master.

[coveralls]

Coverage decreased (-0.2%) to 79.693% when pulling 460a0e3 on issue_103_retrieving_media_doorbell into 47f7934 on master.

[MizterB]

Looks good - I re-enabled the doorbell, logged in via the API without error, and was able to retrieve media library contents. Thank you!