#67 fixed propertyName is null
#67 Added layerName as name for style selection
#67 Created StyleDialogInterface to enable other implementations
#67 changed layerName for the factory from filename without extension to the name of the service
#67 added images for SLD marks
#67 added fallback SLD
#67 minor jalopy changes
#67 added repository for new dependencies
#67 added layername and setLayerName to AbstractFeatureFactory
#67 Added new strings for SLDDefinitionPanel
#67 minor jalopy changes