small changes
Merge branch 'master' of https://github.com/sjyk/sampleclean-async
Try to merge activeml into sampleclean
Merge branch 'master' of https://github.com/sjyk/sampleclean-async

Conflicts:
	src/main/scala/sampleclean/SCDriver.scala
	src/main/scala/sampleclean/clean/dedup/Deduplication.scala
	src/main/scala/sampleclean/clean/dedup/FeatureVector.scala
	src/main/scala/sampleclean/clean/dedup/FeatureVectorStrategy.scala
	src/main/scala/sampleclean/clean/deduplication/FeatureVectorStrategy.scala