added hotkey for text style config, still need to add scrolling text as
mode (since some singstar/guitar-hero-dvd's use that as default, that
would also fix the limited-screen-space issue when using band-mode)
resolved bug where score-screen is activated in karaoke-mode
don't display the autoplay message when it's not active!
up the limits of the svg render for retina and QHD-screens.
also the default is now 1.5 since pc's recently have higher resolution
screens.s