XD-2307 Update Hadoop dependencies for 1.1.x

- Updates to use Spring for Apache Hadoop 2.1.0.M2

- Adds Pivotal HD 2.1 support (version 2.2.0-gphd-3.1.0.0) (phd21)

- Pivotal HD 2.0 and 2.1 will now use the same jars (phd21)

- Updates CDH 5 version to 2.5.0-cdh5.2.0 (cdh5)

- Adds support for Apache Hadoop 2.5.1 (hadoop25)

- Makes hadoop25 the default

- Removes support for Apache Hadoop 2.2.0 (hadoop22)

- Removes support for Pivotal HD 1.1 (phd1)

- Updates options for the hdfs-dataset sink

  - new basePath and namespace parameters replacing directory

  - new writerCacheSize parameter for partition writers cache size

- Updates servers.yml for YARN deployment with latest changes to config/servers.yml