(https://github.com/sagb/alttab) and can't grab Alt+Tab hjkl since i3
has grabbed them.  Rofi does work in this case though.

skippy bindsyms.  Changed rofi and application shortcut keys to Super.

rofi improvements for my workflow (now can user super+vim_keys to change mode and go up/down).  Also added icons on by default.

Changes to rofi config: tab, shift+tab now switches modes.  Due to these changes have removed the i3 config secondary (-show window) bindsym.