Added video menu anisotropic mode list generation from cvar.
Cleanup of menus and UI utils code from last refactoring.
Added player obituary for Makron in Zaaero game DLL.
Renamed "cursor" cursor_t struct to "ui_menucursor".
Renamed "currentweaponmodel" char pointer to "ui_currentweaponmodel".
Added shutdown functions for console, screen, and UI.
Changed stats.log to save to savegamedir instead of the Quake2 root folder.
Renamed cvars menu_sensitivity, menu_rotate, and menu_alpha to ui_sensitivity, ui_item_rotate, and ui_background_alpha.
Removed some unused cvars.
Added CVAR_SAVE_IGNORE flag to "game" and "gamedir" cvars.
Added descriptions for most cvars.
Added dumpcvars command to output a list of cvars with their descriptions to cvarlist.txt.