Reimplement curses in GUIMain.
Use curses.wrapper() within the GUIMain class.
Add input methods to GUIMain.
Add update() method to GUIMain.
Improve input operations.
Fix capitalization problem.
Add rudimentary window switching.
Set default focus for main.
Fix capitalization within test for RankWindow.
Merge branch 'master' into mainClass
Merge branch 'geppettodivacin-mainClass'
updates new window class from base code.