Update AugurMapReduceUpdated3.java

handles exceptions  in map and reduce

2014-11-27 23:41:40,012 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.NumberFormatException: For input string: "null"
	at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1250)
	at java.lang.Double.parseDouble(Double.java:540)
	at com.ufl.AugurMapreduceTool$Map.map(AugurMapreduceTool.java:94)
	at com.ufl.AugurMapreduceTool$Map.map(AugurMapreduceTool.java:1)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:775)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)