Added save point to commands (to check if there is pending changes to be saved)
Added UITest showing basic widgets
Added two ways to change the initial scene
Changed and added some strings
Formatted.
Fixed bugs with some listeners.
Merge pull request #306 from RotaruDan/InitialScene

Added two ways to change the initial scene
Merge pull request #294 from anserran/commandssave

Added save point to commands (to check if there is pending changes to be saved)
Merge pull request #298 from anserran/uishowcase

Added UITest showing basic widgets