A class for parsing and generating WFS v1.1.0 transactions.
To read additional information like hit count (numberOfFeatures) from the  FeatureCollection, call the OpenLayers.Format.WFST.v1.read method with {output: “object”} as 2nd argument.  Note that it is possible to just request the hit count from a WFS 1.1.0 server with the resultType=”hits” request parameter.
Parameters
| options | {Object} Optional object whose properties will be set on the instance. | 
Valid options properties
| featureType | {String} Local (without prefix) feature typeName (required). | 
| featureNS | {String} Feature namespace (optional). | 
| featurePrefix | {String} Feature namespace alias (optional - only used if featureNS is provided).   Default is ‘feature’. | 
| geometryName | {String} Name of geometry attribute.   Default is ‘the_geom’. |