Fixed classifier and started working on auto-publish after creation of a new data package

Classifier was sending `None` when it should have been sending `{}` as `**plotting_args` also, the score_std_cutoff slider bar wasn't implemented/ directed to nowhere. I renamed this to score_coefficient and fixed the parts underneath that actually use/memoize this parameter.

tests pass locally:

    (venv)lovci@Michael-Lovcis-MacBook-Pro2:~/Projects/flotilla_dev/test ->py.test
    ============================= test session starts ==============================
    platform darwin -- Python 2.7.2 -- py-1.4.20 -- pytest-2.5.2
    plugins: cov
    collected 30 items 
    test_basedata.py .
    test_embark.py .
    test_expressiondata.py ....
    test_infotheory.py .......
    test_network.py ....
    test_predict.py ...........
    test_splicingdata.py .
    test_study.py .
    ========================== 30 passed in 88.07 seconds ==========================

but Travis is not running. I don't know why.