removed login for security cas
Added support for string in xgsn, overwrite SensorID
Added CAS redirection in requestDefinition
added shiro and cas in pom
added CAS servlet in web.xml
added web ini for CAS
added ehcache cas client
Merge branch 'security-integration' of github.com:OpenIotOrg/openiot into security-integration

Conflicts:
	modules/lsm-light/lsm-light.server/src/test/java/TestServlet.java