Fixed incorrect instance shuffling algorithm.
Merge pull request #41 from hpxro7/bug/shuffle

Fixed incorrect instance shuffling algorithm.
use multiple return values instead of an array in InstancesTrainTestSplit
Merge pull request #42 from nairboon/master

use multiple return values instead of an array in InstancesTrainTestSplit
Interface extracted
Additional pass
Sort() method made compatable
Mapping over rows
More interfacing
Deleted lots of old stuff
Making progress, just need to debug the categorical attribute
More progress, nearly all tests passing now
All tests passing.
Removed debugging
mmap'ing succeeds
Solid start.
Taking this onto Windows...