Fixed the files test to not care whether the names are reported as bytestrings...

>>> dirs

[]

>>> files.sort()

>>> files

['default.txt', 'django_test.txt']

>>> files == ['default.txt', 'django_test.txt']

True

>>> obj1.save()

>>> dirs, files = temp_storage.listdir('tests')

>>> files.sort()

>>> files

['assignment.txt', 'default.txt', 'django_test.txt']

>>> files == ['assignment.txt', 'default.txt', 'django_test.txt']

True

# Files can be read in a little at a time, if necessary.