The scroll wheel now behaves correctly on Linux. Reports suggest that the fix does not have any effect
on OSX though. The licensing documentation is updated to reflect the fact that there are no GPL components
included in a QB64 program. Some redundant code was removed from the Windows setup script. OSX setup and
run scripts were missing the executable bit - hopefully the repository will preserve that change.
This avoids having to distribute opusinfo, which had a GPL licence attached.
A link to the download and the Opus homepage remains in conversion/download.txt.
