Added null check to RasterLayerRequest class inside the ImageIO-Ext-GDAL plugin
Merge pull request #395 from n-lagomarsini/fixjaiimageread

[GEOT-4743] ImageIO-Ext-Gdal plugin doesn't make a null check on the input parameters.
Fixed issue with with Ushort data on RasterSymbolizerHelper and added test
Update pom.xml

change to Ian's employer
[GEOT-4666]: DB Drop/create from image mosaic
Merge pull request #398 from n-lagomarsini/fixjaiimageread

[GEOT-4744] RasterSymbolizerHelper in gt-render module is unable to handle Ushort data type.
Merge pull request #397 from dromagnoli/GEOT_4666

[GEOT-4666]: DB Drop/create from image mosaic