Fix passing options to addons
Fix passing options to addons

Helpers were only working with args if used with a block

[Closes #20]

platanus/activeadmin_addons,halilim/activeadmin_addons,mabdelfattah/activeadmin_addons,siutin/activeadmin_addons,halilim/activeadmin_addons,mabdelfattah/activeadmin_addons,mabdelfattah/activeadmin_addons,platanus/activeadmin_addons,siutin/activeadmin_addons,platanus/activeadmin_addons,platanus/activeadmin_addons,halilim/activeadmin_addons,mabdelfattah/activeadmin_addons,siutin/activeadmin_addons