Some cosmetic updates to the docs

Signed-off-by: Kwpolska <kwpolska@gmail.com>
Grammar fixes and such

Signed-off-by: Kwpolska <kwpolska@gmail.com>
fixed underline

Signed-off-by: Kwpolska <kwpolska@gmail.com>
session object should be uppercase

Signed-off-by: Kwpolska <kwpolska@gmail.com>
further treatment

Signed-off-by: Kwpolska <kwpolska@gmail.com>
Merge pull request #1474 from Kwpolska/docfix

Some tiny fixes to the documentation
Add copy method to PreparedRequest objects
Wrap long lines in the authentication documentation
Add a simple example of custom authentication in the documentation

Refs #1471
Merge pull request #1477 from dpursehouse/other-auth-basic-example

Add a simple example of custom authentication in the documentation
Add myself to the authors list
Merge pull request #1478 from dpursehouse/add-me-to-authors

Add myself to the authors list
Fix a few warnings flagged by PyDev

- Unused import of urlparse
- Unnecessary definition of variable
- Incorrect indentation
Merge pull request #1479 from dpursehouse/fix-warnings

Fix a few warnings flagged by PyDev
Test cases fail when `HTTPBIN_URL` does not have trailing slash

Test cases can be run against a local httpbin server defined by
the `HTTPBIN_URL` environment variable, but it causes tests to
fail if the given URL does not end with a slash.

Ensure that the URL always ends with a slash.
Fix test cases that fail when running behind a proxy

When sending a request via `Session.send()` the proxies must be
explicitly given with the `proxies` argument.  This is not done
in the test cases, which means that they fail when run on a system
that is behind a proxy.

Update test cases to make sure the proxies are set in the sessions.
Merge pull request #1483 from dpursehouse/httpbin-url-without-trailing-slash

Test cases fail when `HTTPBIN_URL` does not have trailing slash
Merge pull request #1482 from dpursehouse/fix-testcases-with-proxy

Fix test cases that fail when running behind a proxy
Use urlparse.urljointo construct httpbin url
Derp. Use compat