GEOS-6711: improvements for the authkey module, by mapper parameters and
new webservice mapper
GEOS-6711: added some documentation for the improvements
GEOS-6716, Add SolR plugin to the community release
Merge pull request #780 from geosolutions-it/solr-release

GEOS-6716, Add SolR plugin to the community release
Merge pull request #778 from mbarto/geos_6711_authkey_webservice

GEOS-6711: improvements for the authkey module, by mapper parameters and new webservice mapper
Merge branch 'master' of https://github.com/geoserver/geoserver into wps-resource
 - [WPS Resource] Commenting code