I add to the storage the cookies that I receive on every request
I centralize the creation of the OCHTTPRequestOperation on the WebDavClient
I set the cookies on all the requests
I add a delete cookies method
I add a new variable to storage the original URL to recover the cookies in case of a redirected server
Merge pull request #43 from owncloud/OC-3831_SAML_Cookies_library

Oc 3831 saml cookies library