[GEOS-6751] WFS can OOM when gzipping large compressible output
Merge pull request #799 from aaime/gzip_oom

[GEOS-6751] WFS can OOM when gzipping large compressible output
[GEOS-6755] GSIP 119 - WPS clustering of asynchronous requests - architecture refactor to allow pluggable status sharing
[GEOS-6755] GSIP 119 - Hazelcast based status store