Added ReadPreference to SimpleMongoCursor, so the clients can set read preference for each individual query
Added a configuration property for mongo connection-level read preference
Created a 'find' method for SimpleMongoRepository, accepting a ReadPreference argument
Changed the version of gds-mongo-utils to 1.8-SNAPSHOT
Merge pull request #15 from alphagov/lg_cursor_read_preference

Query-level read preference