UNSTABLE: initiated lucene RAMDirectory for trainingSet but it fails to add new docs, to fix
STABLE able to run test cases on tmp folders in src/test/resources. Must create a tmp folder that is removed/reinitiated after its use
fixed bug on WS.publication : parsing a query with wildcards was returning an error
STABLE use in memory lucene index
merge master onto tooling branch
testing: use relative paths for lucene indexes