Updated saveProject function

* Deleted creation of paths to projectManager (for 'IN' and 'OUT)
* Fixed use of projectManager
Updated simple window

* Added text area for log when exceptions or errors
* Added storage of the latest exceptions or errors from the simulation
* Added security on function not depending on enable/disabled button state
    (cannot run simulation if already launch)
* Added hotkeys on window (ctrl-o, ctrl-q, ctrl-r [for run simulation])
* Centered window on screen