get the data sorted by brand and user
Merge branch 'master', remote-tracking branch 'upstream/master'
update
...
Merge branch 'master', remote-tracking branch 'upstream/master'
merge new code
big change.

1. change the project to maven 
2. add  the mahout library
3. finish the recommandation. two file is in mike_tmp folder
4. todo: calculate the f1 score

confusion:
the recommandation is not correct... I did not see a correct
recommandation...

Tomorrow will go on
add the test code
Merge branch 'master', remote-tracking branch 'upstream/master'

Conflicts:
	alipaycontest/.classpath
change the class path
Merge branch 'master', remote-tracking branch 'upstream/master'

Conflicts:
	alipaycontest/src/iot/lane/alipaycontest/test/package-info.java
	alipaycontest/tmp/iot.lane.alipaycontest.firstseason.PredictBuyStatist.xls
merge the code
Merge pull request #2 from MikeCoder/master

添加了刚性需求数据抽取代码