OpenLayers Map ja v1.0.0

• Add Japan GSI map (#1)
• Add overview map feature (#1)
• Add scale line feature (#1)
• Add swipe feature (#1)
• Add heatmap layer (#1)
• Add heatmap KML layer (#1)
• Add removePoI feature (#1)
• Add feature for building marker with Font Awesome icon (#1)
• Add custom style option with image or text (#1)
• Add initial location value and initial zoom Level value (#1)

NOTE: This WireCloud widget is based on Wirecloud/ol3-map-widget created by CoNWeT Lab., Universidad Politecnica de Madrid and Future Internet Consulting and Development Solutions S.L..