Wrap usage of feature reader and writer in a try/finally section, do not take chances about closing them
[GEOS-6747] Fixed wfs outputformat encoding in layer preview
Merge pull request #795 from koordo/layer_preview_GML3.2

[GEOS-6747] Layer preview error for GML3.2
Fixing trivial null check error in WFSReprojectionUtil
Merge remote-tracking branch 'upstream/master'