Merge pull request #1 from datasalt/master

pull new patch of TestSolrOutputFormat
change line delimiter to \n
fix TestTopicalWordCountWithStopWords.test() failure bug.
close TupleFile.Reader after assert and add trash before each mapreduce
runner.
Merge pull request #24 from dongpf/master

fix TestTopicalWordCountWithStopWords.test() failure bug.