apache/mahout — pull request #23 by HuangXiaomeng (2014-06-25 09:01:09+00:00)
Title: Mahout-1588 Multiple input path support in recommendation job

Now recommendation job can only import a input path via "--input", and can't load file from different path. This is a very usual scenario.
I add a option named "--multiInput(-mi)", and don't remove the original input option. These two input option can set together. And the modification only refer to PreparePreferenceMatrixJob.