Update README.md
Merge branch 'master' of https://github.com/OpenClinica/OpenClinica
Merge branch 'master' of https://github.com/OpenClinica/OpenClinica
Merge branch 'master' of https://github.com/OpenClinica/OpenClinica
OC-5928: REST URL to use studySubjectID to get clinical data

Added code to handle a SSID as well as a SSOID in the REST calls.
OC-5928: REST URL to use studySubjectID to get clinical data

Added missing update to security XML file and modified code to return
null if lookups fail (rather than throw an Exception right away)
OC-5928: REST URL to use studySubjectID to get clinical data

Fixed code so wildcard URL arguments (*) will still work.
Merge pull request #57 from sdibona/OC-5928

OC-5928: REST URL to use studySubjectID to get clinical data