* search among airline aircraft
* improved logging information
* search among airline ICAO aircraft (which aircraft does the airline use?)
* check ecosystem before merging with VATSIM data
* multi format compatible (automatically detect format)
* flag if cache values shall be overridden
* init from resource files (those are the files coming with the installer)
* automatically read in background if reader is (already) in its own thread (otherwise cache.set() ASSERT)
* Unlike in other cases, the remote aircraft provider slots are also very frequently called. So besides "style", it might be also useful here to avoid the extra MOC layers.
* Also renamed 2 web service signals and made web service connections Qt::QueuedConnection
* added getAirlineIcaoCodeForUniqueDesignatorOrDefault and getAirlineIcaoCodeForUniqueIataCodeOrDefault from reader/web data services
* rearranged order of functions in ICAO reader
* added some more functions like "containsXX" in reader
* unified member access (this->m_xy => m_xy)
* set object name of readers
* waitForSharedInfoObjectsThenRead (not just waiting, also reading afterwards)
* in case the internet provider is down, this is not detected
* extended test to detect if access is possible
* in case of downtime this indicated in status component
* Log when VATSIM status file has been read
* fix: read VATSIM status file after initReaders completes
* some private slots -> normal private functions
* removed copy/paste error illegalIcaoCodes
follow up of Ref T105
* use doWorkCheck
* relaxed doWorkCheck in unit tests
* removed isShuttingDown, gracefulShutdown
* set timer object name (in case something is wrong, we might see the name in the log)
* no longer using header timestamps, removed functions
* renamed functions to distinguish shared/DB info data
* added 2nd reader m_sharedInfoDataReader
This will replace http header file timestamps
* read function in info reader has retrieval mode flag, unused parameters removed
* waitForDbInfoObjects/getDbInfoDataReader (added "Db"), there will be a 2nd reader
* CWebReaderFlags::DbInfoDataReader (added "Db")
* removed ps_read, only read (public)
* trigger other operations directly when data have been read (do not wait for "all data read")
* avoid retriggering for no reason
* new entity flag for all data req. for model matching
