added number validation and impress.js config
added number validation and impress.js config

henrikingo/impress.js,dulichan/kart-slide,StridersGonnaStride/impress.js2,KathyReid/osdc-2015-presentation,StridersGonnaStride/myimpress,henrikingo/impress.js,iblancasa/BackendSI2-IV-slides,RonFIX/internet,impress/impress.js,StridersGonnaStride/impress.js2,matthewSorensen/himpress,j2lb/Algo_Impress.js,KathyReid/osdc-2015-presentation,impress/impress.js,schalkneethling/mozsa-jhb-opening,arkegeomatica/presentaciones,j2lb/Algo_Impress.js,StridersGonnaStride/myimpress,dulichan/kart-slide,RonFIX/internet,arkegeomatica/presentaciones