Sources for hadoop-patch

Sources were obtained from https://issues.apache.org/jira/secure/attachment/12583703/HADOOP-8545-033.patch
by running "patch" command. All the files related to Hadoop-common were skiped during patching.

Changes were made after patching:
* pom.xml was updated to use hadoop-core 1.1.2 dependency
* removed dependency on 2.x hadoop in code (@Override and isDirectory() -> isDir())
* removed Hadoop 2.X tests

There are no unit-tests, only integration.

Change-Id: I8d7c2f544d14f79597fcdefe27ecae0d43b6df9e
Merge "Sources for hadoop-patch"