Multiple Tab GUI

This function creates a figure with multiple Tabs. The number of tabs can be changed and they are distributed evenly across the top of the figure. Content is provided for the first 5 tabs to demo the program. The demo uses the screen size to adjust the size of the figure. The program uses the ~ character for unused arguments, so if you are not using 2009b, these should be changed to dummy arguments (lines 210 and 234). guidata is set to the TabHandles cell array and is used to pass all arguments and data to the functions.