Merge pull request #9 from pedroigor/master

[PLINK-228] - characterEncoding parameter not used in for Post Requests ...
Merge pull request #10 from pedroigor/master

[PLINK-229] - IDP hangs when redirecting to the SP using HTTP-Redirect B...
Merge pull request #11 from pedroigor/master

[PLINK-230] - Support SSL Client Authentication with a fallback to the c...