Added tab based gui, still to be linked with space4cloud code
first "integration" of the new GUI, still not debugged at all!
testing integration. 
Working until initial launch configuration generation
New Gui integration
Assesment, Optimization working both in batched and not GUI mode
small changes
some lqns error handling
-finished new gui integration
-moved logs in a separate folder
-implemented validation of configuration (only specification of model
file names)
-optimization stops when the window is closed
-task #121 fix 
-bug #120 fix