RF+EXC: remove use of measure
RF: update toc for exercises
ENH+WEB: clarify output of measure
EXC+WEB+SML: remove trailing whitespace
ENH+WEB+SML: add link for splithalf_correlations
NF+EXC+WEB: new exercise illustrating CoSMoMVPA measures
NF: figures illustrating dataset operations (slicing, stacking, splitting)
Merge branch 'master' into cimec2014
Merge remote-tracking branch 'jens/cimec2014' into cimec2014
WEB+EXC: remove ex_dataset_operations.rst
RF+WEB+EXC: update dataset basics
SML+WEB: update link to cosmo2013
WEB+SML: update requirements for exercises
WEB+SML: add examples of measures
WEB+SML: links to getting started steps
WEB+EXC: update exercises
EXC+ENH: add crossvalidation measure exercise
RF+WEB: add tips and philosophy information
SML: remove trailig whitespace
DOC: add comments to example