Add IndexWriter to LuceneIndextest
Merge branch 'master' of snowberry:ZeroIrcLog
protocol : modifications regarding "me"

1) me=2 is added to CHAT message
2) me field is added to NICK and CHAT messages in lucene index
It fixes #18 ( Indexing and requesting root categories cause problems. )
Facet counts are no longer multiplied as many times as fc.getFacetResults is called.
Merge branch 'master' of git:ZeroIrcLog