Adding method to abstract command to return validation errors
Working with older versions of cURL
Merge pull request #463 from guzzle/older-curl

Working with older versions of cURL
Fixing timeout typoe
Fixed value population check
Merge pull request #452 from loonytoons/command-validation

Adding method to abstract command to return validation errors
Merge pull request #465 from aeoris/master

[ServiceDescription] Fixed value population check
correcting name of request parameter

save_as -> save_to
Adding note about params vs query

Taking the comment from the source code
Merge pull request #470 from kosmik-koi/master

documentation correction/expansion
adding documentation for command.parse_response event

Event is in the source code but had been missing from docs.
adding code examples of event listener/subscriber

code examples to aid in plugin creation.
updating command options

based on source code, marking deprecated options in documentation.
adding in new parameters, especially the very useful command.request_options.
fixes a regression introduced in recent versions
Fixing inconsistent test dealing with cookie expiration timestamps. Addresses #474
Adding a change to ensure that libxml errors are buffered when disabling XXE loading in the Response::xml() method
Merge pull request #471 from kosmik-koi/master

documentation updates
Only setting CURLOPT_NOBODY when the method of a request sends a body. Closes #472
Merge remote-tracking branch 'schmittjoh/urlRegression' into fixurlRegression
Using existing merge function