LUCENE-5441: Decouple (Sparse)FixedBitSet from DocIdSet.


git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1633637 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-6007: move 'transitive="false"' from <dependency>-s to <conf>-s (merged trunk r1633647)

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_5x@1633648 13f79535-47bb-0310-9956-ffa450edef68