TSAGE: Fix bug #6545 "Ringworld2 - F5 doesn't create a save game the first time"

The save dialog glitched es the F5 event was already processed in
engines/tsage/core.cpp and it caused the to immediately reopen.
VOYEUR: Don't reset mansion view position after looking at rooms
Merge pull request #449 from gazben/bug6545Fix

TSAGE: Fix bug #6545 "Ringworld2 - F5 doesn't create a save game the first time"
FULLPIPE: Fix lockup on game start
AUDIO: Added stup for MP3 audiostreams in AVI

This is used in German release of Full Pipe. Unfortunately our
current MP3 decoder cannot work with streamed MP3s, and bails out
at the AVI header since there is no full MP3 header yet.
TSAGE: Fix for R2R game/help dialog not accepting Fn keys
SCI: fix coordination translation for 480x300 mac
GRAPHICS: Allow client code to specify TTF render mode.

This allows clients to use the default FreeType2 render mode instead of light.
We really only use light as default because that's what looks best with the
font we use in our GUI right now (which is the same reason why formerly light
was always used in non-monochrome mode).