We will use JR/Lucene indexing configuration to exclude all jcr: and mgnl: properties and boost mgnl:page title and possibly other ones.
The indexing config file is placed under src/main/resources/info/magnolia/jackrabbit and org.apache.jackrabbit.core.query.lucene.SearchIndex will obtain it from the class path.
See also http://wiki.magnolia-cms.com/display/DEV/Search+revisited#Searchrevisited-Limitingsearchresultstorelevantmatches