BF: ensure that t-test returns the proper mean even if compare_to has a value different from zero
ENH: more automagic behaviour to detect sample attribute labels when converting dataset to NIML dset
PL: minor
NF: pearson correlation on matrices
BF: put the scipy requirement inside the function that calls it
NF: support datasets for correlations
RF: use custom correlation function if p value is not requested
ENH: do not require pad to ico ld value
NF: add a __main__ function so that setup of insta corr can be run from command prompt
RF: overwrite files by default for surfaces
BF: null probablity should be idential under two scenarios
NF: caret binary surface read support
ENH: remove decoding of strings in history
ENH: remove some ugly print statements
ENH: more informative error message if type not understood
ENH: better debug info when encoding binary
ENH: use tostring() method for better py3k compatibility
ENH: use string representations irrespective of input datatype type
ENH: more informative binary encoding debug message
PY3: NIML write support for py3k