arrow git commit: ARROW-547: [Python] Add zero-copy slice methods to Array, RecordBatch

Repository: arrow Updated Branches: refs/heads/master ad0157547 -> 66f650cd3 ARROW-547: [Python] Add zero-copy slice methods to Array, RecordBatch Author: Wes McKinney Closes #336 from wesm/ARROW-547 and squashes the following commits: 42037c2 [Wes McKinney]

arrow git commit: ARROW-553: C++: Faster valid bitmap building

Repository: arrow Updated Branches: refs/heads/master 1f26040f5 -> ad0157547 ARROW-553: C++: Faster valid bitmap building Author: Uwe L. Korn Closes #338 from xhochy/ARROW-553 and squashes the following commits: 1c1ee3d [Uwe L. Korn] ARROW-553: C++: Faster valid bitmap