Added wrap text for menu buttons.
Added NewProject button click functionality.
Bug FIX. If the skin was already loaded the loaderCallBack wouldn't be invoked.
It makes sense since it only triggers the callback if the resource it's going to
be loaded from scratch not if we have the resource loaded and catched.
Completed NewProject button functionality.
Created ProjectScreen.
Adapted NewGame action.
Merge pull request #64 from e-ucm/NewProjectFunctionality

New project button functionality