Beta 19 (max 1 month to go)

- fixed random D3D RTG ALT-TAB crash if hardware mouse cursor was enabled
- fixed swapped sound channels if stereo separation code path was used, bug since stereo separation was implemented
- internal sprite DMA pointer bit 0 was not cleared
- _winuae.fx shader file is now built-in, will be written to plugins directory if directory is writable and file does not exist. File will be used as long as version in first line matches (if you want to do some shader experiments)
- winuae will internally convert to cdimage= (not very useful currently but if someone wants to associate cue or iso extensions)
- added "quickstart=," configuration file option (probably only useful as a command line parameter, at least for now) More useful in future, perhaps..