Prevent error when using proxies after picking an Adapter
Fixed pickle support for requests.adapters.HTTPAdapter by adding
'proxy_manager' when unpickling.
Updated AUTHORS.
Move comment to the right place
use adapter pool size for proxies
Add more interlinks between the documentation

Also fixes up tense in a few cases, and adds the `intersphinx` extension so we
can link to the urllib3 documentation when it is called out.
Fix warnings when building the docs

It may be nice to make builds fail if new documentation generates warnings, to
avoid these sorts of problems slipping in in the future.
Bump the year ftw
No one checks docs or a license
Don't let proxy_bypass bring you down.
get_netrc_auth: handle os.path.expanduser failure

os.path.expanduser can raise a KeyError when $HOME is not set and the
POSIX getpwuid() call fails, which can happen when running under a UID
which is not in /etc/passwd or when the password file cannot be read.

The upstream bug report http://bugs.python.org/issue20164 is unlikely to
be backported to Python 2.x even if fixed so this change handles
KeyError by skipping netrc authentication.

Closes #1846
/me grumbles
get_netrc_auth: code cleanup

* Stop iterating as soon as we find a netrc file
* More obvious return None
Update urllib3 to 232f496
Merge pull request #1849 from kevinburke/urllib3-update

Update urllib3 to 232f496
Merge pull request #1836 from sigmavirus24/2014

Bump the year ftw
Merge pull request #1832 from kevinburke/docs-warnings

Fix warnings when building the docs
Merge pull request #1831 from kevinburke/interlinks

Add more interlinks between the documentation
Merge pull request #1827 from pepijndevos/master

Use adapter pool size for proxies
Merge pull request #1845 from Lukasa/proxy_bypass

Resolve proxy_bypass problems.