added validation for callbacks + removed linting warnings
added validation for callbacks + removed linting warnings

garypretty/ibex-dashboard,garypretty/ibex-dashboard,CatalystCode/ibex-dashboard,CatalystCode/bot-fmk-dashboard,CatalystCode/bot-fmk-dashboard,CatalystCode/ibex-dashboard,garypretty/ibex-dashboard,CatalystCode/ibex-dashboard,CatalystCode/bot-fmk-dashboard,CatalystCode/ibex-dashboard,CatalystCode/bot-fmk-dashboard,garypretty/ibex-dashboard