Dropdown/checkboxes now works correctly

Checkboxes/dropdown and sip displays accordingly to the client
sip_options provides by API. However, if user change values for this
particular sip (i.e. not display Ads for instance) we’re saving these
custom sip_params in db as well. When loading in admin view we see if
we have any custom override sip_options and then display silp,
dropdowns and checkboxes accordingly