wfs capability extension point

Added an extension point for adding wfs capability extension elements
Added wfs inspire extension which demonstrates the use of said extension point.
Work is financed by IGN
GEOS-5548 - Nested Layer Groups
GEOS-5574, forward porting tests (no fixes needed on trunk)
Merge pull request #106 from aaime/gsip85

GSIP 85
Merge pull request #95 from jesseeichar/wfs_capability_extension_wfs_inspire

wfs capability extension point
GSIP 91
disable SSL filter test, works locally, but not in hudson
Kicking out the dbconfig module because of GSIP 85 - Nested Layer Groups
fixed exception with generic Geometry type in WMS GetLegendGraphic
improved custom dimensions management
Merge pull request #108 from dromagnoli/wms_dims

improved custom dimensions management
Merge pull request #107 from mbarto/getlegendgraphic_genericgeometry

Fixed exception with generic Geometry type in WMS GetLegendGraphic
GEOS-5548 - reverted change to SystemTestData.tearDown()
Merge pull request #109 from svzdvd/GEOS-5548-nested-groups-4

GEOS-5548 - reverted change to SystemTestData.tearDown()
Update data/release/README.rst

Update with origin for States and Tasmania
Added symbols size handling in WMS GetLegendGraphic
ensuring upstream objects added before, not an issue for memory catalog but is for jdbcconfig
changed some default test db params
updated db init scripts to include some convenience views derived from the core table model
fully disabling dbconfig community module, replacing with jdbcconfig artifact