OAK-1001: SegmentMK: 32bit support for the file backend

Improved configurability of the different TarMK modes

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1524548 13f79535-47bb-0310-9956-ffa450edef68
OAK-1001: SegmentMK: 32bit support for the file backend

Add TarMK as one of the TCK test fixtures.
For some reason I'm seeing DocumentViewImportTest failures with this. Disabling those tests for now.

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1524549 13f79535-47bb-0310-9956-ffa450edef68