Gadgets skill#245

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duffrecords wants to merge 10 commits intojohnwheeler:masterfrom

duffrecords:gadgets-skill

Commits on Sep 12, 2018

set light color to parameter, not hard-coded value
duffrecords
committed

Commits on Sep 13, 2018

ensure only one StartInputHandler directive per request, don't overwrite GadgetController directives
duffrecords
committed
allow whitelisting gadget IDs in first_button()
duffrecords
committed