* add hotkey button gfx and hotkey to input configuration
* prompt user if no hotkey set, and offer to use select
* if no hotkey is set, still save an entry with key id 0, for backward compatibility
Added "DebugText" setting that causes TextComponents to draw a background of their size + the area of their TextCache.
It can be toggled with Ctrl-T when running with --debug.
Added std::cout output when specifying overriding home path.
Fixed NinePatchComponent not accepting sizes less than the original texture.
Design tweaks to GuiTextEditPopup.
Statistics are no longer displayed in GuiMetaDataEd.