Wrap functions from os.path in method calls

Some of the functions in os.path can be references to C functions, e.g. isdir
on Windows (Python 3.2.2). These don't get bound to instances of path. Out of
caution, we've wrapped all os.path functions in method calls.
Merge pull request #11 from takluyver/wrap-os-path-funcs

Wrap functions from os.path in method calls
added context mananger
added context mananger, more tests
Add .pyc files to the gitignore.
Merge pull request #14 from neevor/master

Add .pyc files to the gitignore.
Merge pull request #13 from luciotorre/master

A path can now be used as a context manager to cd to it.
Fix docstring to be Python 3 compatible
Bumped to version 2.3
Removed download_url (use PyPI for downloads).
Added myself as a maintainer.
Updated URL to point to jaraco github fork.
Updated Trove classifiers to specify the Python versions supported
Fix mismatched version in 'test_path'.
Add os.path.realpath in testContextManager - test was failing on OS X
because os.path.realpath('/var/folders') == '/private/var/folders'
test_path.py: add my name to list of contributors
test_path.py: change file -> open (which 2to3 didn't catch) for Python 3 compatibility
Import with_statement from __future__ for Python 2.5
Add tox.ini for tox (http://tox.testrun.org/)
Add .tox to .gitignore
Add .travis.yml for Travis CI (http://travis-ci.org/)
Add myself to list of contributors.
Merge pull request #1 from msabramo/testing

Add support for tox (http://tox.testrun.org/) and Travis CI (http://travis-ci.org/)