Secondary key seems to be removed from BCSE

Bing CSE has now gone into General Availability so this module might get some more attention.

As part of this it looks like the Secondary Key has been removed from the interface.

Currently this is required, so the quickest fix is to just set required = false in admin.inc.

Also the latest api version is now 7.0 so would be good to update that as well (line 160 of bcse.module).

Personally I got around it by setting things via drush eg:

drush vset bcse_custom_config 11111
drush vset bcse_language en-au
drush vset bcse_pager_size 10
drush vset bcse_primary_key d5a54d7d75ad5a7a67a5
drush vset bcse_results_per_page 20
drush vset bcse_safesearch Strict