Adding the ability to parse Link headers in a response Adding a parseParams method to header objects that can be used across the project.
Removing unused setGlue()
Deprecating setTokenizedHeader and getTokenizedHeader. These never actually worked correctly. Use $header->parseParams() instead.
Throw a RuntimeException if the cURL extension is not present
Revise wording for exception if curl is not present
Small cleanup. Superfluous parameter
Merge pull request #329 from lstrojny/bug/incomplete-url

Allow incomplete URLs to be parsed correctly
Not cloning header object when parsing header parameters
Cleaning up Header
Cleaning up header constructor
Fixing docblock
Merge branch 'master' of github.com:guzzle/guzzle
Reverting the change that added the cloning of a body when cloning a request. Closes #327
Restructuring internal header structure, adding granular headers, move HeaderComparision because it is only for testing, and using a header collection
Adding getAll() to HeaderCollection for better compatibility with Collection
Fixing an issue where the return values of Response header functions were not consistently a string
Removing the cast as a string argument of getHeader
Making setting a request on a response even more deprecated
Better separation of concerns for Request and RequestMediator. Adding startResponse() to RequestInterface and removine receiveResponseHeader()
Correcting docblock