Base class for invocation
Empty java classes for implementation
ClusterMaster - connection, slave list (SB1, SB2)
DatabaseManager-SB9,10,11

DB connect,fetch,update
DatabaseManage-SB10,11

Changed Update to perform batch updates, tested and added required jars
Remove external reference and adding library into the project
Removed log file
Merge branch 'Sprint1' of https://github.com/Ptiruvee/HadoopMetricSuite into Sprint1

Conflicts:
	HadoopMetricSuite/.classpath
Logging mechanism
 - Added log4j jars and xml
 - Added UserLog to support logging in user interface
CPU Platform metric
Session implementation
	-ClusterMaster updated
	-ClusterSlave added
	-JobSession added
Bug fixes
	-Updated library with modified version of sshxcute
	-Printing stack trace to log file
Integration
Commiting base class since it will be required for next transistion
Merge branch 'Sprint1'