Disabled the check for python code in order to reduce the runtime further
Added back the carriage return at the end of the file.
From now on, the check for python code is only disabled when we are in DEBUG_MODE
check_py_code is only disabled when running the test test_dropout.py
Made code PEP8 compliant
Fixed pep8 errors.
test_dropout.py script now handles the case when the variable 'mode' doesn't have the attribute 'check_py_code'.
Small fixes to test_dropout.py
Merge pull request #1022 from AlassaneNdiaye/reduce_runtime_test_dropout

Disabled the check for python code in order to reduce the runtime of 'pylearn2/scripts/papers/dropout/tests/test_dropout.py'