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
Adding SOLR data store docs
[GEOS-6717] Improve store param hover labels
Merge remote-tracking branch 'upstream/master'