Clean-up, update, additions

Removed unfinished, redundant, unused and broken scripts.
The hint box no longer overlaps the running macros.
Removed some keybinds in favor of existing buttons in the GUI.
You now cycle gamemode instead of toggling it.
The Alt (LMENU) key now has two /rocket strengths.
The fly speed script now works with CommandBook instead. And you can
also set your walking speed now.
You can now Ctrl+Scroll through some new items.
Corrected and updated the periodic hints.