Server sync fixed

- isSelected -> removed and replaced with "self.parent.myPlayer.unitsSelectionne" (no need to loop throught every player and then every units)
- renamed selectUnit to selectObject
- renamed list unitsSelectionne to objectsSelectionne
- working selection of town center
- self.longeurLigne moved to init of vue
- renamed windows title to "Cegep of empire" instead of "Tk"
Merge branch 'integration' of https://github.com/gabc/cegepofempire into integration