Remove experimental ol.format code
Add ol.format.Format
Add ol.format.JSON
Add ol.format.Text
Add ol.format.XML
Add ol.format.GeoJSON
Use ol.format.GeoJSON in geojson example
Use ol.format.GeoJSON in icon example
Add ol.source.VectorFile
Add ol.source.GeoJSON
Use ol.source.GeoJSON in geojson example
Use ol.source.GeoJSON in icon example
Use ol.source.GeoJSON in vector-layer example
Use ol.source.GeoJSON in complex-geometry example
Merge pull request #1353 from twpayne/vector-api-format

[vector-api] ol.format.Format