dependency fixes
Improvements to Job to get it to run

Conflicts:
	hive-io-exp-cmdline/src/main/java/com/facebook/giraph/hive/mapreduce/SampleInputSplit.java
	hive-io-exp-cmdline/src/main/java/com/facebook/giraph/hive/mapreduce/WritingTool.java
bugfix in deps
fix npe
Working job

1. Use giraph code used for parsing -D and -hiveconf args. This also solves setting the chronos pool via -D option
2. do a  hive -e "alter table hive_io_test drop if exists partition  (ds='2013-04-01')"
3. Currently the command line script does not exit for some reason even though data appears on hive. This is something further to debug
Test plan:
[groys@dev1165 ~/debugging] hive -e "select * from hive_io_test where ds='2013-04-01'"

Logging initialized using configuration in file:/mnt/vol/hive/sites/hive99-rH32842-20130216.rH34080/shortcuts/silver/hive/conf/hive-log4j.properties
Hive history file=/tmp/groys/hive_job_log_groys_201304142024_834523977.txt
OK
23      34      45      2013-04-01
11      22      33      2013-04-01
67      78      89      2013-04-01
99      88      77      2013-04-01
Merge pull request #14 from groys/working-job

Working job