* gracefulShutdown in metar reader and other readers
* made m_shutdown thread safe
* Demoted log level for reader
* helper function finished or shutdown
* URLs no longer have to be passed
* watchdog for DB readers to check DB status
In same step:
* fixed some log messages and comments
* allow to self signed SSL certificates
* adjusted namespace for CNetworkUtils (now in network)
* flags for readers (which reader is reading specific entities etc.)
* web data services: bundling multiple readers (webdataservices) and implementing IWebDataReaderProvider
* readers now able to read single entities
* the reader will be used in context, but can also be used standalone (ie mapping GUI) GUI
* adjustments in context/airspace as required
** for web reader
** livery
* base class for database based reading (via JSON/web)
* model data reader for models