Digest auth: case insensitive replacement of 'digest ' string with '' from WWW-Authenticate
Merge branch 'master' of git://github.com/kennethreitz/requests
compiled regex expression in digest auth, this also works in python 2.6.x
Update urllib3 to 71f84f9.
Use streaming decompression feature of urllib3.
Fix test with StringIO.
* Documented the logging, requested in #1297
* Added build directory and *.egg to .gitignore
* Added sphinx as setup requirement in order to be able to build documentation with `pyhton setup.py build_sphinx`

modified:   .gitignore
modified:   docs/api.rst
modified:   setup.py
Updated documentation indicating that logging is done via requests.packages.urllib3 instead of requests.
modified:   docs/api.rst
Merge pull request #1302 from ssbarnea/master

Documents the actual logging methods #1297
Merge pull request #1299 from schlamar/fix-decompression

Use streaming decompression feature of urllib3.
Merge pull request #1242 from oviboy/master

HTTP Digest Auth case insensitive replacement of "Digest "