The following issues were fixed
* Fixed wrong/missing namespaces
* Fixed obvious typos in documentation
* Documentation not in sync with source code
refs #544
* new slot syntax in ATC station component
* formatting, comments
* tab order
* utility function for severity in status message
* null checks in threadutils
* invalidKey function in datastore
* changed data object keys (cached objets)
* added missing value object compare cases
* renamed timer in context network
* finder function for model list
* renamed getContainer to container (as it is just a reference)
* changed aircraft view to siumlated aircraft models / views
* functionality to change fast pos. updates (signals, slots)
* allow to request text message widget from aircraft component
* preparation for a context menu to send text messages from ATC/aircraft view
* preparation for context menu for fast pos. updates
* reverse ICAO lookup at login screen
* display fast updates / parts in GUI
* moved max- aircraft into settings
* made serverselection own component
* added functions in component to select COM frequencies
* changed views to contain ObjectType in template
* function to obtain selected objects in view base class
* model:
** required a non templated base class for Q_OBJECT / slots
** added worker for thread, QConcurrent is not used as it does not work with template classes
* views:
** added cpp file for view base class
** added template parameter for container in views
** different modes how resizing will be applied
