Smarter default item resizing
Added dynamic toolbar and fix icon colors in shortcut configuration
Fix number of arguments passed to --help, --version and --tests
Remove option to hide menu

Reasons:
 * Pressing Alt key shows menu even if Alt-Tab is pressed to focus other
   window.
 * Moving mouse to the top of window will show menu even if you try to
   move mouse only to the first item.
 * It doesn't work on OS X.
 * Code is lot cleaner without it.