Implement readProjection on ol.format.WFS and add WFS JSONP example
Remove skippeFeatures collection
Merge pull request #1986 from bartvde/wfs-example

ol.format.WFS has no readProjection method (r=@elemoine)
Merge pull request #2012 from elemoine/skipfeature

Remove skippeFeatures collection
Use goog.array.contains instead of goog.array.indexOf