Merge branch 'ly/changed-paths-traversal'

Lift the limitation to use changed-path filter in "git log" so that
it can be used for a pathspec with multiple literal paths.

* ly/changed-paths-traversal:
  bloom: optimize multiple pathspec items in revision
  revision: make helper for pathspec to bloom keyvec
  bloom: replace struct bloom_key * with struct bloom_keyvec
  bloom: rename function operates on bloom_key
  bloom: add test helper to return murmur3 hash

diff --cc blame.c
Simple merge

diff --cc revision.c
Simple merge