This patch decreases the cost of skills, fixes consumables moving on the hotkey bar, opens up next challenge sector for all characters when one is won, and fixes a few more minor issues.

1.004 change list:

* skills no longer have increasing cost so more competitive with hull increases and crew, if you already have points in skills it will refund appropriate points
* hopefully fixed consumables moving around on hotkey bar when using sorting buttons
* now if a challenge sector is won the next one is unlocked for all characters (Darkness/Morte)
* tripled fighter shields regen so actually noticable (mwyeoh/Morte)
* now if change sectors while in escape pod you don't get rescued but you are no longer stuck in an escape pod (Dyskord)
* changed PROTOCOL_VERSION to 123