NEVERHOOD: Rename stuff in DiskplayerScene

- Add SmackerPlayer::isDone()
- Fix puzzle key variable handling
- Update globalvars.txt
NEVERHOOD: Use constants for the numbers in get/setGlobalVar

Now the code is much more readable

- Still TODO is to do the same with get/setSubVar
Merge branch 'master'

Conflicts:
	configure
	base/plugins.cpp
NEVERHOOD: Replace most of the literal digits in get/setSubVar with constants
NEVERHOOD: Fix Smacker framerate bug after the video decoder changes

- React to the space key which can skip some videos and navigation transitions
- Minor renaming in SmackerScene
NEVERHOOD: Implement Scene2802 (radio tuning scene)

- Handle mouse button up events
- Use the SmackerDecoder's rewind
- Implement SmackerPlayer::gotoFrame (slow but better than nothing)
NEVERHOOD: Implement Module2900, the teleporter

- Also fix a related bug in Module2000 (teleporter appearing animation didn't play)
NEVERHOOD: Work on the resource system:

- Remove unused stuff
- Shuffle some stuff around
NEVERHOOD: Use CursorMan

- Only update entities according to the current frame rate but run the actual game loop at a faster rate so the mouse cursor movement doesn't get choppy
NEVERHOOD: Fix a very stupid bug in Scene::insertMouse433
NEVERHOOD: Graphics related changes/fixes:

- Add BitmapFlags enum
- Merge unpackSpriteRle and unpackSpriteRleRepl
- Implement Y flipping in unpackSpriteRle
- Fix Y flipping in AsScene2804CrystalWaves
NEVERHOOD: Implement GameModule::createModuleByHash

This is used later when restoring savegames

- Rename V_RING5_PULLED to V_RADIO_ENABLED
- Implement Palette::fillBaseBlack and use it in Scene2803Small
- Fix Scene2802 (show disabled radio if it's not enabled)
NEVERHOOD: Cleanup and fixes

- Implement GameModule::initScene2801Vars()
- Fix Scene1201::~Scene1201() which does some game logic stuff
- Rename some stuff
- Add more game variable constants
NEVERHOOD: Add mouse cursor hiding/showing
NEVERHOOD: Add Entity::setSoundPan and use it in the DiskplayerScene
NEVERHOOD: Remove TODOs concerning the original engine's debug code

- Add Scene1202 palette effect
- Add AsScene1405Tile sound panning
- Clean up some old comments
NEVERHOOD: Try to give the AsCommonCar identifiers better names

- Implement AsCommonCar::updateSound()
- Fix a bug in Scene1608 (the Klaymen animation got stuck when trying to get back into the car)
NEVERHOOD: Implement an experimental "render queue" to only draw and update what's actually changed; it works surprisingly well so far and only needs a few more changes here and there
NEVERHOOD: Use hardcoded values as width/height of several sprites (in the original the values were loaded from the entry's extData but since all values are constant anyway it shouldn't matter)
NEVERHOOD: Remove DirtyBackground which became obsolete after the renderqueue stuff