Merge pull request #7 from wanghuida/master

fixed maven package error by maven-datanucleus-plugin
change debug info log level, fix #8 issue. add change date support in crontab
ignore hive-site.xml when mvn package file.
Merge pull request #9 from pensz/master

change debug info log level, fix #8 issue. add change date support in crontab
fix bug of incorrect table name for MQuery and MCrontab
Merge pull request #10 from pensz/master

fix bug of incorrect MQuery and MCrontab 's table name
Merge pull request #18 from xielong/master

fix:Memory leak exists in the function runCmd() in the class QueryRunner.
Merge pull request #1 from anjuke/master

Consolidation of the changes from anjuke