There are small typos in:
- pylearn2/datasets/cache.py
- pylearn2/datasets/svhn.py
- pylearn2/models/gsn.py
- pylearn2/models/mlp.py
- pylearn2/packaged_dependencies/theano_linear/spconv.py
- pylearn2/sandbox/cuda_convnet/cutil.h
- pylearn2/sandbox/cuda_convnet/cutil_inline_runtime.h
- pylearn2/space/tests/test_space.py
- pylearn2/training_algorithms/tests/test_sgd.py
- pylearn2/utils/iteration.py

Fixes:
- Should read `successful` rather than `succesfull`.
- Should read `separately` rather than `seperately`.
- Should read `reaches` rather than `reachs`.
- Should read `propagate` rather than `propogate`.
- Should read `initialize` rather than `intialize`.
- Should read `implementation` rather than `implmentation`.
- Should read `enough` rather than `anough`.
- Should read `dictionary` rather than `dictionnary`.
- Should read `design` rather than `deisng`.
- Should read `condition` rather than `conditon`.
- Should read `composite` rather than `compsite`.

docs: Fix a few typos