Addressing issue #296 (Incorrect output-CRS execptions). + General PEP8ing.

Conflicts:
	eoxserver/services/mapserver/wcs/coverage_renderer.py
Bug fixes. Additional fixes for #296. Added/updated autotest to conform changes.

Conflicts:
	autotest
	eoxserver/services/mapserver/wcs/coverage_renderer.py
Printing DQ metadata in the coverage info.
Version update.