Changes made:
1. Fix for OR clause support over Lucene
2. Replace mongoDb.find() with mongoDb.findOne() for findById() method.
Merge branch 'trunk' of github.com:impetus-opensource/Kundera into trunk
Fix for issue#250
[PATCH] use org.sonatype.nosql groupId for patched artifact
[PATCH] remove dependency on artifacts from non-central repo
[PATCH] implement Query.getSingleResult
[PATCH] fix Enum handling
[PATCH] fix kundera-cassandra tests under Maven