* detect when network is connected (to receive data for statistics)
* function to get statistics
* also added function to re-initialize last model set (unrelated, but in same class)
* located in context since context owns matcher object
* call from GUI
* some code formatting to indicate the cross simulator slots connected in runtime
refs #780
* added signatures for completer string (when send via context size matters)
* support of all instaled models in completer
* added BLACKMISC_EXPORT in model cache classes
In same step cleaned up contexts a bit
* added function for model set strings
* renamed functions to getModelSet... instead of installed models (the set is smaller and is what we want to use with DBus)
* signal when debug/log flags changed
* removed some \copydoc
* allow to enable/disable rev.lookup/matching messages
* removed reload model function (dangling)
