Fixed CDATA opaque parse problem.

The opaque data is surrounded by a CDATA tag that was ignored by the RPC causing to not authenticate the host and create a
new entry in the DB each time a RPC was issued by the client. This commit fixes the problem, requiring to have at least a
BOINC 6.10.x version.

conf/jarifa.conf

@@ -27,7 +27,7 @@
         <boinc_user_email>[email protected]</boinc_user_email> <!--BOINC user e-mail that you want to use for Jarifa (it could be an existing one)-->
         <boinc_user_name>jarifa</boinc_user_name> <!--BOINC user name that you want to use for Jarifa (it could be an existing one)-->
         <boinc_passwd>jarifa</boinc_passwd> <!--BOINC password that you want to use for Jarifa (it could be an existing one)-->
-        <min_core_client_version>600</min_core_client_version> <!--Minimum BOINC core client version required for working with Jarifa. By default 6.0-->
+        <min_core_client_version>610</min_core_client_version> <!--Minimum BOINC core client version required for working with Jarifa. By default 6.0-->
         <volunteer>1</volunteer> <!--Enables (1) or Disables (0) the Volunteer Role-->
     </account_manager>
     <gmap> <!--Google Maps integration. Add your country and a Google Map Key to enable this feature-->

rpc.php

@@ -22,7 +22,13 @@
 
 $rpc = new rpc;
 
-$host = simplexml_load_file("php://input");
+$host = simplexml_load_file("php://input",'SimpleXMLElement',LIBXML_NOCDATA);
+
+// Update <opaque><id></id></opaque> content as it is surrounded by CDATA:
+
+$host->opaque->addChild('id','');
+$host->opaque->id = simplexml_load_string($host->opaque, 'SimpleXMLElement',LIBXML_NOCDATA);
+
 
 if ($rpc->auth($host))
 {