Created the getType function to know the types of the layers

Fixed GetFeatureInfo behaviour to prevent errors when clicks over a WMS layer without cached style

Removed Bower dependencies

Improved import/export functions to include styles

Added options to customize the GeoJSON layers popup

Fixed a bug related to the identification of WMS layers that do not contain data

Corregido bug en función identify de las capas WMS y añadido radio a los estilos para capas GeoJSON