[1/2] arrow git commit: ARROW-264: File format

Repository: arrow Updated Branches: refs/heads/master ec51d5667 -> 803afeb50 http://git-wip-us.apache.org/repos/asf/arrow/blob/803afeb5/java/vector/src/main/java/org/apache/arrow/vector/file/ArrowWriter.java -- diff --git a/ja

[2/2] arrow git commit: ARROW-264: File format

ARROW-264: File format This is work in progress Author: Julien Le Dem Closes #123 from julienledem/arrow_264_file_format and squashes the following commits: 252de6d [Julien Le Dem] remove outdated comment 04d797f [Julien Le Dem] maps are not nullable yet e8359b3 [Julien Le Dem] align on 8 byt