modified validation
Merge pull request #39 from thomas-vincent/fix-physio

Add html output for xndarray. + some cleaning
fix minor conflict in asl_physio.py
Merge branch 'fix-physio' of https://github.com/pyhrf/pyhrf into fix-physio
Add parallelization for cartesian_apply, using joblib
Protect strings for proper latex output in legend and axis labels
html output: add rotate class for axis labels, reduce default figsize, protect file names to avoid dots. TODO: style definition of rotate class should be put somewhere
Add output error wrt ground truth for prf & brf. Improve computation speed
remove print