IOU 17.12.1

[Desposyni]

Before submitting a pull request, please check the following.

When updating an existing appliance:

• The new version is on top.
• The filenames in the "images" section are unique, to avoid appliances / version overwriting each other.
• If you forked the repo, running check.py doesn't drop any errors for the updated file.

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[Desposyni]

I meant to separate the IOSv and IOU commits into separate branches, sorry I don't know more about Git, hopefully this isn't a problem.

[grossmj]

I meant to separate the IOSv and IOU commits into separate branches, sorry I don't know more about Git, hopefully this isn't a problem.

No worries, thanks for your contribution! :)