Adds xml hadoop config generating

 * Xml config provisioning is done for core, hdfs, mapred xmls
 * Removed xslt transformations from data nodes
 * At now Savanna contains default configs for Hadoop in resources/
 * This version of default configs is applied for Hadoop 1.1.1
 * No needs to distribute new cloud image

Change-Id: Ia13e9231d75bbac3cff6291d477b72d727e21c71
Fixes: bug #1169900
Merge "Adds xml hadoop config generating"