CDB-3527 #resolve - checking url prefix instead of if user belongs to an org generating the vis url
fixed visualization url spec
CDB-3527 Added another spec to check org user using non-org url
CDB-3527 small unused code cleaning while checking new code
CDB-3527 Forcing dashbord urls to be org-based if user belongs to an org
Merge pull request #610 from CartoDB/CDB-3527

CDB-3527