typos in joblib/numpy_pickle.py
typos in joblib/memory.py
typos in joblib/parallel.py
typos joblib/format_stack.py
typos in joblib/func_inspect.py
typos in joblib/hashing.py
typos in joblib/__init__.py
typos in joblib/logger.py
Merge pull request #65 from esc/nitpick_spelling_comments

Nitpick spelling comments
REL: 0.7.0
fix function caching for IPython
WIP
Adapt collision warning to new func_inspect
TST: add Python 3.3 to travis
TST: fix broken test

When ex = JoblibException, isinstance(ex, JoblibException) is always
false, so this test wasn't doing anything.

Also changed a return to a SkipTest.
ENH check for Sized instead of list for pre_dispatch

Handles tuples, sets and Python 3's dict_keys type the same as lists.