More fixes
[GEOS-5701] Add support for raster with time validity interval to GeoServer

Conflicts:

	src/community/wcs2_0/src/main/java/org/geoserver/wcs2_0/response/GMLTransformer.java
	src/community/wcs2_0/src/main/java/org/geoserver/wcs2_0/response/TimeDimensionHelper.java
	src/main/src/main/java/org/geoserver/catalog/util/ReaderDimensionsAccessor.java
	src/wms/src/main/java/org/geoserver/wms/capabilities/DimensionHelper.java