Update the version of xmlseclibs we are using.

composer.json

@@ -24,7 +24,7 @@
     "require": {
         "php": "~5.3",
         "simplesamlphp/saml2": "~0.3",
-        "simplesamlphp/xmlseclibs": "~1.3.1",
+        "simplesamlphp/xmlseclibs": "~1.3.2",
         "openid/php-openid": "dev-master#ee669c6a9d4d95b58ecd9b6945627276807694fb as 2.2.2"
     },
     "support": {