Implemented WCS 2.0 Scaling Extension Interface.
Implemented WCS 2.0 scaling extension in Coverage renderers.
Bug fixing related to scaling extension.
Updated autotest.
Fixing translate params function.
Updating autotest.
Merge pull request #269 from EOxServer/scaling-extension

WCS 2.0 scaling extension
Updated schemas for WCS CRS extension and WPS schema fix.
Added tests.
Added tests.
Updated missing merge in autotests regarding scaling extension.
Merge branch 'master' into wps_10

Conflicts:
	autotest
Updated autotest.