Add program entry point and a MainWindow class.
tree64c01f4ea6cd35136f20a8edaf994386e756156a
-rw-r--r-- 12 .gitignore
-rw-r--r-- 125 Rakefile
drwxr-xr-x - data
drwxr-xr-x - lib
drwxr-xr-x - test