Display filter results even with no search query
clean-up before merge: added TODO note into files duplicated from 'open-data-node' module
clean-up before merge: SOLR_REPOSITORY changed back to "localhost" + TODO note enhanced
clean-up before merge: DOS line endings converted to UNIX line endings
clean-up before merge: added copyright notice
new feature => bumped up release number
clean-up before merge: removed unused code
Merge remote-tracking branch 'fork-tmatula/feature-filter_display' into feature-search_results

Conflicts:
	src/main/java/sk/opendatanode/utils/SolrQueryHelper.java