* UI2: conversion of download panel to UI2 style.
* UI2:messageoptions fine tuning.
* UI2:transfer fine style tuning.
* New SAV_GameDelete_f function for deleting savegames.
* UI2:campaign Make delete buttons work.
* Clean-up of obsolete components
* Moved hud_chat from hud_.ufo to irc.ufo
* New icons for transfer menu by cooler_sk