Merge pull request #80 from ramiel/proxy_support

Added proxy support
Merge pull request #81 from ramiel/squid_bug

Squid bug
Spaces!
version bump to 0.2.5
Twitter API changes broke twitter example
Add phpunit to require-dev
Make sure to use serialized_payload length as Content-Length if the
request has a body
Merge pull request #85 from Trii/proper-content-length

Add proper Content-Length based off of the request body's length
version bump
Merge remote-tracking branch 'nategood/master'

Conflicts:
	src/Httpful/Request.php