Updated session docs.
Fixed `httpie session list`
PEP8
Cleanup
Improved --check-status + HTTP error + stdout redirect warning.
Session commands.
Update README.rst
Requests 1.0: prefetch; default_headers.
Merge branch 'master' of github.com:jkbr/httpie
Requests 1.0: session cookies.
Requests v1.0: Fixed request body access.
Test Python 3.3 on Travis.
Revert: Test Python 3.3 on Travis.

3.3 still not supported
Require Requests v1.0.3.
Merge branch 'master' of github.com:jkbr/httpie
Clean up
Use `urlsplit` instead of `urlparse`.

Closes #118.
Added Python 3.3 to tox and travis conf.
Compatibility with requests v1.0.4 (requests URL params).
Python 3.3 fixes.