[request] move http related request's to subnamespace.
[request][symfony] impl GetHttpRequestAction which can manage symfony's http request.
Merge pull request #149 from formapro-forks/http-requests

Http requests
Merge branch '0.9'
[request] remove deprecated requests.
Merge pull request #150 from formapro-forks/http-requests-remove-deprecated

[request] remove deprecated requests.
init version of stripe checkout
move to stripe root dir, start working on stripe.js
remove todo comment.
wip