Merge pull request #3 from genyang/master

Add "remove_col" to arff.py and improve "init" files
Merge pull request #4 from genyang/master

Revert init files
added missing data process to binary relevance nearest neighbour
Merge branch 'master' of github.com:sdestercke/classifip
Merge pull request #4 from sdestercke/master

Merge from Sebastien