Small improvements in facets.
orderBy option added to searchServer
documentation added
Merge remote-tracking branch 'wf4ever/develop' into develop

Conflicts:
	src/main/java/org/purl/wf4ever/rosrs/client/search/Facet.java
	src/main/java/org/purl/wf4ever/rosrs/client/search/FacetValue.java
Tests fixed.
tests fixed
Merge branch 'develop' of github.com:wf4ever/rosrs-client-common into develop

Conflicts:
	src/test/java/org/purl/wf4ever/rosrs/client/TestUtils.java
default max rows parameter
sort fields to FoundRO added
Fix offset and limit.
Merge branch 'develop' of git@github.com:wf4ever/rodl-client-common.git
into wf4ever-develop

Conflicts:
	src/main/java/org/purl/wf4ever/rosrs/client/search/SolrSearchServer.java
Changed names, improved code. FoundRO!
Refactored the FoundRO class.
Facets can be sortable.
Created --> Creation date
solr NumFound paramter added
Use primitive type unless the boxed is really required.
Make the RangeFacetEntry serializable
Merge remote-tracking branch 'wf4ever/develop' into wf4ever-master
[maven-release-plugin] prepare release rodl-client-common-2.1.4