update to Lucene 4.9
using a cleaner query parser
trying a corpus field approach to filtering
massive re-engineering of lucene indexer
remove xpath convenience methods that were causing issues (and update
xpath library)
skip analysis of already analyzed documents
check is stored first
find documents without corpus mapping
allow directory reader to be reloaded
reload directory after indexing
more efficient lucene indexing (don't open writer if not needed)
support for prefixes in phrases
cleanup
cleanup
cleanup
trying to avoid corpus mapper
switch to directory reader call (so that the caller can decide how to
wrap if needed)
fixing timing issue with indexing and correcting wrong unit test values
fix bug with unpositioned enum in kwics
use lucene manager for adding document