cleanup temp fix as it was fixed differently.
remove max_lables in DenseDesignMatrix
Support for more CSV data formats
add weight decay to ProjectionLayer
improve compatibility for python 3

- correct .travis.yml
- make TransformerIterator iterable
- remove comparison "None > 0"
- use six.text_type instead of unicode
- use six.moves.input instead of raw_input
- use six.moves.reduce
- use operator module instead of lambda function
- convert the pretrained test data
- remove some unused import
fix incorrect changes in DenseDesignMatrix
Merge pull request #1251 from euphoris/python3

improve compatibility for python 3
Merge pull request #1258 from minhlab/master

add weight decay to ProjectionLayer
remove extra blank in cifar10.py
Merge pull request #1232 from nouiz/cleanup_tmpfix

cleanup temp fix as it was fixed differently.
Merge pull request #1228 from cancan101/csv_improve

Support for more CSV data formats
Merge pull request #1265 from yingzha/develop_0.1

Remove max_labels in DenseDesignMatrix
changed model.get_target_source and added initialization option in mlp