template for new classifier module
updated init, fit, & fit_dataset in Classifier class
removed coactivation test temporarily
Merge branch 'master' into decoder-refactor

t message to explain why this merge is necessary,
Wrote classify_regions. To extract feature_data by id needed to add get_feature_data to dataset
updated classify_regions: working, just need implement classify. updated get_feature_data.
minor improvements to data getter methods
Added stuff to Classifier
Classify class and classify function work now ... not yet fully complete but classify
added example in ipython notebook and some minor changes to classify_regions

outstanding issue: class_weights
test fix
sci-kit learn does not support named outcome (y) vectors so changed to numbered classes
updated ipython notebook examples
example update
added exception handling for string parameters. fixed bug in cv init parameter
Merged decoder-refactor branch