VIDEO: Add support for multiple Smacker audio tracks
CGE: Remove unecessary void pointer usage in resource file I/O.
FULLPIPE: Implement Movement::freePixelData()
FULLPIPE: Implement clearGlobalMessageQueueList1()
FULLPIPE: Fix ModalVideoPlayer. Original reacts to more keys
FULLPIPE: Initial code for scene34
FULLPIPE: Plug scene34 in
FULLPIPE: More code to scene34
FULLPIPE: Implement scene34_updateCursor()
FULLPIPE: Implement sceneHandler34()
FULLPIPE: Enable scene34
FULLPIPE: Implement sceneHandler34_fromCactus()
TSAGE: Fix for speaking to R2R speakers multiple times
TSAGE: Fix right animation of suit-rack in R2R landing bay
TEENAGENT: Fix two more missing callbacks.

This fixes bug #6494 "TEENAGENT: Yet another unimplemented callback".
Merge pull request #420 from somaen/disableSDLAlpha

SDL: Avoid having SDL_SRCALPHA set even if we have alpha in the pixelformat.
FULLPIPE: More code to scene34
FULLPIPE: Yet more code to scene34
FULLPIPE: Implement sceneHandler34_setExits()
FULLPIPE: Implement sceneHandler34_testVent() and showVent()