Follow-on patch to MAPREDUCE-7341, adding ABFS support and tests
* resilient rename
* tests for job commit through the manifest committer.
contains
- HADOOP-17976. ABFS etag extraction inconsistent between LIST and HEAD calls
- HADOOP-16204. ABFS tests to include terasort
Contributed by Steve Loughran.
Change-Id: I0a7d4043bdf19bcb00c033fc389730109b93b77f