Fix bug #256 where duplicate query terms could cause a 'duplicate index' error when building the query vector. Thanks Bjorn Svensson, Jason Feng, and et1421 for reporting and confirming the issue.
Fix bug #255 where search queries used a different separator than the tokeniser causing some terms to not be searchable. Thanks Wes Cossick for reporting.
Reduce precision of term scores stored in document vectors to reduce the size of serialised indexes by ~15%, thanks Qvatra for the idea.
Fix regression #254 where documents containing terms that match properties from Object.prototype cause errors during indexing. Thanks VonFry for reporting.