The `start.sh` & `stop.sh` scripts have already been marked as executables in the source folder... But since we have only piped their contents, we need to set correct file permissions again.
Recently we have stopped including the version number in the zip and exe files uploaded to github, as this allows us to use the "https://github.com/Qortal/*/releases/latest/download/*" redirect for all 3 files when linking from the qortal.org website. Previously, it could only be done for the JAR since this was the only file that didn't contain a version number. This avoids having to update the website every time we distribute a new release.
Note that this currently requires that the Qortal-x.y.z.exe file created by AdvancedInstaller is renamed to qortal.exe before running ./build-release.sh. If you forget to rename, the script will exit with a warning that the file couldn't be found.
There were necessary for these scripts to function in my build environment (Mac OSX). This may give errors when running in other environments, but we can deal with that in future, when others need to use these scripts.
