Bug fix #372
Bug fix
Bug fix #376 : Could not use bold fonts, but I assume that these changes will be sufficient for now
Merge branch 'OpenETCS/master'
Some warnings/info messages corrected
Ask before closing the window (with the button top-right) to save the model before closing the window
One of linking requirements was already implemented
Bug fix #380 : States were always considered as not having a comment. This was due to the fact that the inner state machine could not be commented (and should refer to the enclosing state)
Bug fix #357
Linking received by infill was already implemented
Merge branch 'OpenETCS/master'