Replace leftover /opt usage with KITCHENPLAN_PATH
Replace leftover /opt usage with KITCHENPLAN_PATH

zakeeruddin21/kitchenplan,CraigCottingham/kitchenplan,leftathome/kitchenplan-1,kitchenplan/kitchenplan,hedywoo/kitchenplan,wchrisjohnson/kitchenplan,hedywoo/kitchenplan,optimizely/kitchenplan,wchrisjohnson/kitchenplan,18thletter/kitchenplan,franklouwers/kitchenplan,fredguth/kitchenplan,zakeeruddin21/kitchenplan,brodock/kitchenplan,fredguth/kitchenplan,franklouwers/kitchenplan,brodock/kitchenplan,CraigCottingham/kitchenplan,kitchenplan/kitchenplan,leftathome/kitchenplan-1,18thletter/kitchenplan