Added support for Hosted Management Center.

This is done by adding the projectid/securitytoken setting to the ManagementCenterConfig
and by updating the ManagementCenterService to make use of these settings correctly.
Added the Demo Application
Added the XML functionality for the extra ManagementCenter config options
Minor tweaks in the xml parsing
More tweaks in XML parsing url
Additional debug logging
Added a test for TimedMemberStateSerialization
Removed the security token from the start.do url
Added support for Hosted Management Center.

This is done by adding the projectid/securitytoken setting to the ManagementCenterConfig
and by updating the ManagementCenterService to make use of these settings correctly.
Added the Demo Application
Added the XML functionality for the extra ManagementCenter config options
Minor tweaks in the xml parsing
More tweaks in XML parsing url
Additional debug logging
Added a test for TimedMemberStateSerialization
Removed the security token from the start.do url
Added a property to enable the hosted management center functionality. Which is now disabled by default
Merged conflict
Made the hosted mancenter url configurable
Removed demo app