GEOT-4587 fix
[GEOT-4686] WMSCoveageReader can return coveage bounds with no CRS
[GEOT-4688] SimplifyingFilterVisitor should simplify and-ing/or-ing of negated filters
Fixing test, and also a bug in wfs store, attributes used in post filters were not being requested to the remote wfs
GEOT-4618: Updating to ImageIO-Ext 1.1.8
GEOT-4611: ColorMap generator based on SVG (Linear gradient) parsing and color entries
[GEOT-4611]: small fix for interval colormaps
GEOT-4627 Fixed decoding of netcdf4 (HDF5) images, and netcdf rasters in general. The code now tries to avoid unnecessary affine transformations. It now also supports decoding of ncml images (simply by improving the 'canDecode' step.)
[GEOT-4691]: NetCDF envelope fix (corner coordinates)
[GEOT-4691]: Fixed tests
simple composite curve type parsing support included, GEOT-4683

Backort of #357
[GEOT-4610]:PAM auxiliary files
GEOT-4576
[GEOT-3949] SQL filters inconsistent with Java for null values
[GEOT-4693] - Wrong fixture in imageMosaic postgis index test
[GEOT-4694] Have xsd-sld validate and parse geometry transformations in SE 1.1
[GEOT-4656] AverageVisitor and MedianVisitor fail on null value
GEOT-4695 Image Reader should return null if no image data is available
GEOT-4696 Image mosiac jdbc cannot handle single band float images
GEOT-4525 JDBCAccessPGRaster - updating mosaic extent/resolutions table