Add support for writing WFS GetFeature
Add reading of TransactionResponse
Read the metadata of a FeatureCollection
Add write support for BBOX filter
Add write support for Transaction
Add support for writing Native
Port over test case for multiple Query elements
Restore the exports
Add more typedefs for return objects
Merge pull request #1829 from bartvde/wfs2

WFS 1.1.0 format (read/write) (r=@twpayne,@ahocevar)