Set way ids in ol.format.OSMXML
Hoist var declaration
Merge pull request #1801 from twpayne/osm-xml-way-id

Set way ids in ol.format.OSMXML
Rename ol.source.VectorFile to ol.source.StaticVector
Factor out ol.source.FormatVector
Rename ol.source.FormatVector#loadFeatures to loadFeaturesFromURL
Load features before rendering
Add ol.loading
Add ol.source.RemoteVector
Load features on demand in vector-osm example
Export ol.format.OSMXML