sgb: clusters detection
sgb: distance boosts
sgb: check boost only if clusters exist
sgb: update obj val while checking boosts
sgb: boost optimization and better tracing
sgb: trace new cluster
sgb: dist coeff in XML
tester: cluster times detection
tester: final time print
sgb: confidence intervals
sgb: approx results over time
report: clusters detection
sgb: group-by like sub-areas
sgb: approximate answering
sgb: SciDb query data class
sgb: no unnecessary path manips
sgb: engine and approx. answering selection
cmake: missing scidb-find file
sgb: final approx and scidb patches
queries: up-to-date with the current params