Move batch node creation to sample package
Set lucene config. Add helpers to get indexhits.

o Set Lucene configuration when adding indexes.
o Get IndexHits iterator on a query.
o Check if relationship exists with a key/value pair
  on the relationship index.
Parse location object for each node
Add node static properties. Use location object
Add edge index key static property
Initialize location properties
Add tests for querying
Add QueryProcessor to sort by texts, foaf and geo