Minor cleanup.
Fixing issues (unused parameter, missing inheritance) with XML/KVP parameters.
Fixing EO O&M feature info renderer.
Stricter BBOX parsing and better error reporting. Introduced LayerNotDefined exception to better display the error message (locator/code).
Removed unused imports.
CLI: dataset registration: Fixing WKT footprint import.
Merge branch 'master' into wms_new_layer_factories_clean
Fixing issues with InvalidAxisLabel exception
Fixing locator in KVP decoders.
Merge branch 'master' of git+ssh://github.com/EOxServer/eoxserver
Merge branch 'master' into wms_new_layer_factories_clean

Conflicts:
	eoxserver/services/ows/wms/util.py
WMS: Fixing the layer's rendering order and styling applicators.