v0.3.1

Added

• FeatureCollection can load a feature collection using itemId
• Rendering FeatureLayer with drawingInfo using esri-leaflet-renderers 2.0.3
• FeatureCollection use renderer modules of esri-leaflet-renderers to render
• Test script with karma, mocha and chai
• Automatically checking with Travis CI

Changed

• Separate module for a feature collection as FeatureCollection
• Separate module for labeling as LabelMarker