JWS-121 Improved the AnnualStat and ServiceStatus classes so they start the scheduler in the init() method and refresh the in memory cache every X minutes. The number of minutes is defined in the Engine.local.properties config. In memory values are cached in the ServletContext.
JWS-121 & JWS-109 Improved the way the service_status.jsp and usage_statistics.jsp work to load cached htmls or to redirect on error (i.e. missing cached htmls). This is a very hacky temporary solution. The provided script can be used to refresh the cached htmls every x minutes.