* 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
* Specialized formatters (e.g. for bool, for PQs etc.) allow specialized look and feel for each column
* Fixed isValidComFrequency used for formatters
* Changed models to use formatters
* Outdated propertyByIndexAsString methods removed
* During the above tasks: fixed override keyword in some places
* Column tooltips
* refs #323, wrong column name fix
