Ship appdata.xml with Linux builds

[probonopd]

Please ship arduino.appdata.xml with the Linux builds provided on https://www.arduino.cc/en/Main/Software. As of today, the file is present in git but absent from the binary builds.

[cmaglie]

where this file is expected to be? in the root folder of the zip file (together with the arduino executable)?

[probonopd]

According to the spec, it would normally go to /usr/share/appdata/arduino.appdata.xml but since Arduino zip files are not packages that are installed into the system by a package manager I think it's not really specified; close to desktop.template would probably make sense. The user or some script acting on behalf of the user will then be able to copy it from there and install it in the system.