More menu/highlight things:
* Rename "Default" to "Game type", to make clearer what it's doing.
* Tweak race colouring slightly.
* Put a highlight around the level select icon, and make it consistent with voting.
* Allow setting the highlight colour to affect the intermissions.
* Fix bug with gametype colour getting for record attack.
A handful of skincolour things:
* Rename Turqouise to Aqua, because it resembles one of my fav 2.2 colours with that name.
* Fix incomplete Steel Blue -> Steel rename.
* Merge the very similar Blueberry and Sapphire...
* ... so Sapphire can be backported!
* And Ruby too.
* Bar of levels.
* Colourisation!
* New V_SKYMAP, which hasn't been put in dehacked lists but is otherwise valid!
* New single page statistics screen!
* V_DrawFixedPatch now works at the edge of the screen!
Ghost fixes!
* On minimaps!
* Free memory after use!
* Don't spawn in midair on slopes!
