infrastructure for core module arquillian tests
use managed JBAS to execute core module tests
Minor changes in FB processor. 1) Have returnURL to be protected to allow accessit from subclasses, 2) Add username to FacebookPrincipal
Remove principal saving to HttpSession. Add JSONObject to be aprt of FacebookPrincipal, so it's possible to obtain various attributes from JSONObject
Merge pull request #73 from mposolda/master

Minor changes in Social for FB integration.