Merge pull request #58 from luwei0917/Wei_Lu

Wei lu
Merge pull request #59 from luwei0917/master

8:51PM
8:53PM 4/14/2014
Merge remote-tracking branch 'remotes/origin/andy'
8:53PM 4/14/2014
Merge pull request #60 from luwei0917/andy

Andy
9:09PM 4/14/2014
Merge pull request #61 from luwei0917/andy

9:09PM 4/14/2014
Merge pull request #62 from luwei0917/master

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