cookies.morsel_to_cookie(morsel) raise TypeError repaired.

morsel_to_cookie(mosel) method raise TypeError: create_cookie() got unexpected keyword arguments: ['path_specified', 'domain_specified', 'port_specified', 'domain_initial_dot'].

so we should remove these param from create_cookie(...)
cookies.morsel_to_cookie morsel['expires'] can't be strtime, and max-age convert to expires problem repair
update urllib3 to 60ba176f5d
Document blocking calls.
Remove development reference from docs sidebar.
Merge pull request #1413 from Lukasa/docs

Assorted docs updates
Merge pull request #1412 from t-8ch/update_urllib3

update urllib3 to 60ba176f5d
Merge pull request #1408 from wasw100/master

cookies.morsel_to_cookie morsel['expires'] can't be strtime, and morsel['max-age'] convert to expires problem repair