The following issues were fixed
* Fixed wrong/missing namespaces
* Fixed obvious typos in documentation
* Documentation not in sync with source code
refs #544
* invalid models can be highlighted on stash
* selection mode can be toggled between single/multi selection (where applicable)
* color for highlighting can be set
* finetuning of menus
* added required signal slots
* moved models for stashing into aircraft model view
* allow to unselect when stashed
* fixed DB object highlighting and resize row height automatically
* add functions to apply changes to selected objects
* allow to highlight models by their model strings
* Utility function to show which parts come from DB
* model strings can be obtained sorted/unsorted
* will allow to highlight entities
* nested custom menus
* moved displayAutomatically() menus in view base class
* fixed which menus are displayed for aircraft models
* also changed to QStandardItem model to see if this is causing any trouble (the real bigger changes will follow in #530)
* 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)
* for new value objects (e.g. distributor, ...)
* new modes are required (e.g. CStatusMessageListModel::Simplified)
* model filter allowing to filter models
* load indicator when performing long lasting operations
* custom menu can be injected (->menu delegate)
* resizing based on random elements (subset resized only)
* CAircraftMappings -> will be replace by CAircraftModel
* CAircraftIcaoData aircraft ICAO data -> aircraft/airline ICAO code and livery
* CAircraft class no longer to be used, but CSimulatedAircraft
* removed corresponding GUI model classes / filters
* DBus mixins moved to dbus.h
* Json mixins moved to json.h
* Icon mixin moved to icon.h
* Comparison mixins moved to compare.h
* Hash and string mixins moved to blackmiscfreefunctions.h
* Index mixin moved to propertyindexvariantmap.h
* MetaType mixins moved to variant.h
* registerMetaValueType moved to variant.h
* valueobject_private.h renamed to variant_private.h
* signatures in contexts
* some specialized functions in aircraft list
* context menus in aircraft view
* default "blinking" implementation in driver common base class
