Added support for per-batch dropout.
Added per_example to the cost.
added icml07/convex dataset
FIX number of train/valid
added rectangles dataset
rectangles image added
corrected docstring
get_test added
updated import (string -> string_utils)
Merge pull request #340 from capybaralet/master

found an old import statment
Merge pull request #339 from memimo/icml07

Convex, Rectangles, Rectangles Image datasets added
Merge pull request #337 from bouthilx/master

added seconds_per_epoch channel in train
Updated a couple other import statements
Merge pull request #342 from dwf/string_stuff

Updated a couple other import statements
Merge pull request #338 from dwf/batchwise_dropout

Added support for per-batch dropout.
replaces optparse with the newer argparse
hepatitis dataset
added a TODO
FoveatedNORB.get_test_set
better error message